PSP Solar Wind Electrons Alphas and Protons (SWEAP) SPC Ion Number Density, Velocity, and Thermal Speed Momemts and Fits, Level 3 (L3), 0.2185 s Data

https://doi.org/10.48322/49we-tr31

2021-04-27 15:38:11Z

SPC Level 3 Ion Data

File Naming Format: psp_swp_spc_l3i_YYYYMMDD_v01.cdf

This data product contains derived measurements of ion properties in the solar wind, including those for density, temperature, and velocity. These are determined both by a direct computation of the velocity moments of the reduced distribution function and by attempting to fit the primary peak in the ion I(V) curve with a Maxwellian model. These measurements correspond one to one with spectra in the psp_swp_spc_l2i file for the same date. It may be convenient for some applications to cross-reference the two. For example, the corresponding l3i file contains ephemeris and data quality flag information that may be useful for an investigator who is concerned only with l2i type measurements.

Conditions that impact measurement quality are documented in the DQF variable, which contains a 32 element flag array for each measurement time. Each element of the array is reserved to signify a specific condition. These conditions are described in the DQF_FLAGNAMES variable. In this version, for example, DQF_FLAGNAMES.DAT[23] is set to "spacecraft maneuver". If measurement "i" was made during a spacecraft maneuver, it is thus flagged with DQF.DAT[23,i] = 1.

In Version 01, measurements are not provided, i.e. variables are set to fill, during spacecraft maneuvers, under conditions of low signal-to-noise, and during certain observed transients. Such conditions are rare during encounters, but increasingly frequent in interplanetary cruise. These conditions are documented in the DQF variable. Remarks are also provided in the "SPC Reduced Data Quality Periods" table. In Version 01, the solar wind alpha particle component is not measured. Thus, variables are set equal to fill values.

SPC Encounter 1 Remarks

Data quality is very good for the duration of the encounter. The solar wind flow was within the optimal field of view for the SPC instrument for nearly the entire encounter. See the data flags for specific exceptions. As with all encounters, signal-to-noise is higher during ingress than egress, which is reflected in the typically smaller uncertainties and less frequent "primary peak low signal" flag events.

SPC Cruise Phase Remarks

Measurements recorded during cruise phase are not all transmitted to Earth. The typical return is one spectrum out of every 32.

SPC Encounter 2 Remarks

Due to an erroneous setting in the operating mode for this encounter, ion full scan spectra and certain spectra immediately following ion full scans are of reduced quality. In the affected full scan spectra, the energy steps over an initial portion of the measurement spectra have zero width, i.e. the Level 2 ion variables MV_LO.DAT = MV_HI.DAT, and the corresponding measurements are purely noise. In some cases, this results in a poor determination of the proton "primary peak" energy, which renders additional subsequent full scans that follow subject to the same incompleteness. In other cases, the energy range for the subsequent "ion peak tracking mode" scan is not ideal. The affected Level 3 ion measurements have been flagged with DQF.DAT[22]=1, which stands for "energy ranging/peak tracking error" and/or set to fill. The operating mode has been revised such that future encounters will not be so affected.

Parker Solar Probe SWEAP Rules of the Road

As part of the development of collaboration with the broader Heliophysics community, the mission has drafted a "Rules of the Road" to govern how PSP instrument data are to be used.

• 1. Users should consult with the PI to discuss the appropriate use of instrument data or model results and to ensure that the users are accessing the most recently available versions of the data and of the analysis routines. Instrument team Science Operations Centers, SOCs, and/or Virtual Observatories, VOs, should facilitate this process serving as the contact point between PI and users in most cases.
• 2. Users should heed the caveats of investigators to the interpretations and limitations of data or model results. Investigators supplying data or models may insist that such caveats be published. Data and model version numbers should also be specified.
• 3. Browse products, Quicklook, and Planning data are not intended for science analysis or publication and should not be used for those purposes without consent of the PI.
• 4. Users should acknowledge the sources of data used in all publications, presentations, and reports: "We acknowledge the NASA Parker Solar Probe Mission and the SWEAP team led by J. Kasper for use of data.".
• 5. Users are encouraged to provide the PI a copy of each manuscript that uses the PI data prior to submission of that manuscript for consideration of publication. On publication, the citation should be transmitted to the PI and any other providers of data.

Please acknowledge the Principal Investigator J.C. Kasper for use of the Data. NASA open data policy applies. Consultation with the instrument team is strongly recommended.

spase://VSPO/NumericalData/ParkerSolarProbe/SWEAP/SPC/Level3/SolarWindMomentsFits/PT0.2185S

Online

Open

CDF

None

Please acknowledge the Principal Investigator J.C. Kasper. Please acknowledge the Data Providers and CDAWeb when using these Data.

Online

Open

CSV

Please acknowledge the Principal Investigator J.C. Kasper. Please acknowledge the Data Providers and CDAWeb when using these Data.

PT0.2185S

Epoch Time, TT2000, Midpoint of Integration

Epoch

Epoch Time Tags, TT2000, Nanoseconds since J2000 at Midpoint of the Integration

Warning: the Epoch time typically has an irregular cadence owing to frequent changes in the operating mode. TT2000 is measured in nanoseconds from J2000 with leap seconds included. Please refer to CDF TT2000 documentation with regards to this convention. This time corresponds to the first measurement of the spectrum. In accordance with SPDF standards, this epoch is interpreted a CDF_TT2000 time. It is acknowledged here that this epoch is not strictly equal to "terrestrial time" as it is defined in the CDF_TT2000 documentation nor is the calendar date interpreted by CDF_T2000 operation performed on this epoch strictly equal to Coordinated Universal Time, UTC This Parameter exhibits an increasing Monotonic Progression.

PT0.2185S

ns

1.0e-9>s

1990-01-01T00:00:00.000000000

2029-12-31T23:59:58.999000000

9999-12-31T23:59:59.999999999

Solar Probe Cup Data Quality Flag

Time Series defined by using: EPOCH

DQF

Solar Probe Cup, SPC, Data Quality Flag: an array of SPC data quality indicators

Genaral Flag Values: 0=Good/Nominal/Exceptional conditions absent/etc., >1=Bad/Problematic/Exceptional conditions present/etc., -1=Status not determined ("don't know"), <-1=Status does not matter ("don't care").

PT0.2185S

-2

127

-128

Solar Probe Cup General Quality Flag

Time Series defined by using: EPOCH

general_flag

Solar Probe Cup, SCP, General Quality Flag: This flag documents all exceptional conditions that can affect normal data analysis of SPC observations. All flag values equal to zero signify good data with no exceptional conditions present.

Genaral Flag Values: 0=Good/Nominal/Exceptional conditions absent/etc., >1=Bad/Problematic/Exceptional conditions present/etc., -1=Status not determined ("don't know"), <-1=Status does not matter ("don't care"). The General Flag can be found in all of the l3i files.

PT0.2185S

-2

127

-128

Proton Velocity moment estimate, in the Spacecraft frame, good Qs

Time Series defined by using: EPOCH

vp_moment_SC_gd

Proton, p, Velocity, V estimate, from the first moment of the reduced distribution function, in the Spacecraft, Spacecraft frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_moment_SC, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Proton Velocity moment estimate, upper uncertainty, in the Spacecraft frame, good Qs

Time Series defined by using: EPOCH

vp_moment_SC_deltahigh_gd

Proton, p, Velocity, V estimate, upper uncertainty, from the first moment of the reduced distribution function, in the Spacecraft, Spacecraft frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_moment_SC_deltahigh, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Velocity moment estimate, lower uncertainty, in the Spacecraft frame, good Qs

Time Series defined by using: EPOCH

vp_moment_SC_deltalow_gd

Proton, p, Velocity, V estimate, lower uncertainty, from the first moment of the reduced distribution function, in the Spacecraft, Spacecraft frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_moment_SC_deltalow, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Velocity moment estimate, in the Radial-Tangential-Normal frame, good Qs

Time Series defined by using: EPOCH

vp_moment_RTN_gd

Proton, p, Velocity, V estimate, from the first moment of the reduced distribution function, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_moment_RTN, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Proton Velocity moment estimate, upper uncertainty, in the Radial-Tangential-Normal frame, good Qs

Time Series defined by using: EPOCH

vp_moment_RTN_deltahigh_gd

Proton, p, Velocity, V estimate, upper uncertainty, from the first moment of the reduced distribution function, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_moment_RTN_deltahigh, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Velocity moment estimate, lower uncertainty, in the Radial-Tangential-Normal frame, good Qs

Time Series defined by using: EPOCH

vp_moment_RTN_deltalow_gd

Proton, p, Velocity, V estimate, lower uncertainty, from the first moment of the reduced distribution function, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_moment_RTN_deltalow, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Number Density moment estimate, good Qs

Time Series defined by using: EPOCH

np_moment_gd

Proton, p, Number Density, n estimate, from the zeroth moment of the reduced distribution function, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: np_moment, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Proton Number Density moment estimate, upper uncertainty, good Qs

Time Series defined by using: EPOCH

np_moment_deltahigh_gd

Proton, p, Number Density, n estimate, upper uncertainty, from the zeroth moment of the reduced distribution function, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: np_moment_deltahigh, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Proton Number Density moment estimate, lower uncertainty, good Qs

Time Series defined by using: EPOCH

np_moment_deltalow_gd

Proton, p, Number Density, n estimate, lower uncertainty, from the zeroth moment of the reduced distribution function, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: np_moment_deltalow, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Proton most probable Radial Thermal Speed moment estimate, good Qs

Time Series defined by using: EPOCH

wp_moment_gd

Proton, p, most probable Radial Thermal Speed, Vth estimate, from the second moment of the reduced distribution function, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wp_moment, general_flag.

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Proton most probable Radial Thermal Speed moment estimate, upper uncertainty, good Qs

Time Series defined by using: EPOCH

wp_moment_deltahigh_gd

Proton, p, most probable Radial Thermal Speed, Vth estimate, upper uncertainty, from the second moment of the reduced distribution function, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wp_moment_deltahigh, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Proton most probable Radial Thermal Speed moment estimate, lower uncertainty, good Qs

Time Series defined by using: EPOCH

wp_moment_deltalow_gd

Proton, p, most probable Radial Thermal Speed, Vth estimate, lower uncertainty, from the second moment of the reduced distribution function, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wp_moment_deltalow, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Primary Proton Population Velocity estimate, in the Spacecraft frame, good Qs

Time Series defined by using: EPOCH

vp1_fit_SC_gd

Primary Proton Population, p, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Spacecraft, Spacecraft frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp1_fit_SC, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Primary Proton Population Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

vp1_fit_SC_uncertainty_gd

Primary Proton Population, p, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp1_fit_SC_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Primary Proton Population Velocity estimate, in the Radial-Tangential-Normal frame, good Qs

Time Series defined by using: EPOCH

vp1_fit_RTN_gd

Primary Proton Population, p, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp1_fit_RTN, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Primary Proton Population Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

vp1_fit_RTN_uncertainty_gd

Primary Proton Population, p, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp1_fit_RTN_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Primary Proton Population Number Density estimate, good Qs

Time Series defined by using: EPOCH

np1_fit_gd

Primary Proton Population, p, Number Density, n estimate, from 1-dimensional Maxwellian fitting, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: np1_fit, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Primary Proton Population Number Density estimate, all Qs

Time Series defined by using: EPOCH

np1_fit_uncertainty_gd

Primary Proton Population, p, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: np1_fit_uncertainty, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Primary Proton Population most probable Radial Thermal Speed estimate, good Qs

Time Series defined by using: EPOCH

wp1_fit_gd

Primary Proton Population, p, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wp1_fit, general_flag.

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Primary Proton Population most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wp1_fit_uncertainty_gd

Primary Proton Population, p, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wp1_fit_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Proton Velocity estimate, in the Spacecraft frame, good Qs

Time Series defined by using: EPOCH

vp_fit_SC_gd

Proton, p, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Spacecraft, Spacecraft frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_fit_SC, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Proton Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

vp_fit_SC_uncertainty_gd

Proton, p, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_fit_SC_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Velocity estimate, in the Radial-Tangential-Normal frame, good Qs

Time Series defined by using: EPOCH

vp_fit_RTN_gd

Proton, p, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_fit_RTN, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Proton Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

vp_fit_RTN_uncertainty_gd

Proton, p, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: vp_fit_RTN_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Number Density estimate, good Qs

Time Series defined by using: EPOCH

np_fit_gd

Proton, p, Number Density, n estimate, from 1-dimensional Maxwellian fitting, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: np_fit, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Proton Number Density estimate, all Qs

Time Series defined by using: EPOCH

np_fit_uncertainty_gd

Proton, p, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: np_fit_uncertainty, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Proton most probable Radial Thermal Speed estimate, good Qs

Time Series defined by using: EPOCH

wp_fit_gd

Proton, p, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wp_fit, general_flag.

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Proton most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wp_fit_uncertainty_gd

Proton, p, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wp_fit_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Alpha Particle Velocity estimate, in the Spacecraft frame, good Qs

Time Series defined by using: EPOCH

va_fit_SC_gd

Alpha Particle, He++, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Spacecraft, Spacecraft frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: va_fit_SC, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Alpha Particle Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

va_fit_SC_uncertainty_gd

Alpha Particle, He++, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: va_fit_SC_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Alpha Particle Velocity estimate, in the Radial-Tangential-Normal frame, good Qs

Time Series defined by using: EPOCH

va_fit_RTN_gd

Alpha Particle, He++, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: va_fit_RTN, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Alpha Particle Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

va_fit_RTN_uncertainty_gd

Alpha Particle, He++, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: va_fit_RTN_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Alpha Particle Number Density estimate, good Qs

Time Series defined by using: EPOCH

na_fit_gd

Alpha Particle, He++, Number Density, n estimate, from 1-dimensional Maxwellian fitting, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: na_fit, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Alpha Particle Number Density estimate, all Qs

Time Series defined by using: EPOCH

na_fit_uncertainty_gd

Alpha Particle, He++, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: na_fit_uncertainty, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Alpha Particle most probable Radial Thermal Speed estimate, good Qs

Time Series defined by using: EPOCH

wa_fit_gd

Alpha Particle, He++, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wa_fit, general_flag.

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Alpha Particle most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wa_fit_uncertainty_gd

Alpha Particle, He++, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: wa_fit_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Population 3 Velocity estimate, in the Spacecraft frame, good Qs

Time Series defined by using: EPOCH

v3_fit_SC_gd

Population 3, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Spacecraft, Spacecraft frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: v3_fit_SC, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Population 3 Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

v3_fit_SC_uncertainty_gd

Population 3, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: v3_fit_SC_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Population 3 Velocity estimate, in the Radial-Tangential-Normal frame, good Qs

Time Series defined by using: EPOCH

v3_fit_RTN_gd

Population 3, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: v3_fit_RTN, general_flag.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Population 3 Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

v3_fit_RTN_uncertainty_gd

Population 3, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: v3_fit_RTN_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Population 3 Number Density estimate, good Qs

Time Series defined by using: EPOCH

n3_fit_gd

Population 3, Number Density, n estimate, from 1-dimensional Maxwellian fitting, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: n3_fit, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Population 3 Number Density estimate, all Qs

Time Series defined by using: EPOCH

n3_fit_uncertainty_gd

Population 3, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: n3_fit_uncertainty, general_flag.

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Population 3 most probable Radial Thermal Speed estimate, good Qs

Time Series defined by using: EPOCH

w3_fit_gd

Population 3, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: w3_fit, general_flag.

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Population 3 most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

w3_fit_uncertainty_gd

Population 3, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: w3_fit_uncertainty, general_flag.

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Population 3 Identifier, good Qs

Time Series defined by using: EPOCH

pop3_mtoq_gd

Population 3 Identifier, the third population fit, that is, in addition to primary Proton and Alpha peaks, only good data qualities

This parameter is virtual. It is calculated by calling the function APPLY_FILTER_FLAG with the following input parameters: pop3_mtoq, general_flag.

PT0.2185S

u/e

1.0

1000.0

-1.0e+31

Spacecraft Position, Heliocentric Inertial coordinates, cartesian

Time Series defined by using: EPOCH

sc_pos_HCI

Spacecraft Position, Heliocentric Inertial, HCI, coordinates, cartesian

HCI coordinates are also called Ecliptic J2000. The Z-axis is the solar north rotational axis and the X-axis is the solar ascending node on the J2000 ecliptic.

PT0.2185S

km

1.0e3>m

-3.0e+08

3.0e+08

-1.0e+31

Spacecraft Velocity, Heliocentric Inertial coordinates, cartesian

Time Series defined by using: EPOCH

sc_vel_HCI

Spacecraft Velocity, Heliocentric Inertial, HCI, coordinates, cartesian

HCI coordinates are also called Ecliptic J2000. The Z-axis is the solar north rotational axis and the X-axis is the solar ascending node on the J2000 ecliptic.

PT0.2185S

km/s

1.0e3>m/s

-300.0

300.0

-1.0e+31

Spacecraft Position, Latitude, Carrington coordinates, spherical

Time Series defined by using: EPOCH

carr_latitude

Spacecraft Position, Latitude, Carrington coordinates, spherical

Measured from the Solar Solar Equator

PT0.2185S

°

0.0174532925>rad

-90.0

90.0

-1.0e+31

Spacecraft Position, Longitude, Carrington coordinates, spherical

Time Series defined by using: EPOCH

carr_longitude

Spacecraft Position, Longitude, Carrington coordinates, spherical

Measured from the Solar Prime Meridian

PT0.2185S

°

0.0174532925>rad

-180.0

180.0

-1.0e+31

Proton Velocity moment estimate, in the Spacecraft frame, all Qs

Time Series defined by using: EPOCH

vp_moment_SC

Proton, p, Velocity, V estimate, from the first moment of the reduced distribution function, in the Spacecraft, Spacecraft frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Proton Velocity moment estimate, upper uncertainty, in the Spacecraft frame, all Qs

Time Series defined by using: EPOCH

vp_moment_SC_deltahigh

Proton, p, Velocity, V estimate, upper uncertainty, from the first moment of the reduced distribution function, in the Spacecraft, Spacecraft frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Velocity moment estimate, lower uncertainty, in the Spacecraft frame, all Qs

Time Series defined by using: EPOCH

vp_moment_SC_deltalow

Proton, p, Velocity, V estimate, lower uncertainty, from the first moment of the reduced distribution function, in the Spacecraft, Spacecraft frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Velocity moment estimate, in the Radial-Tangential-Normal frame, all Qs

Time Series defined by using: EPOCH

vp_moment_RTN

Proton, p, Velocity, V estimate, from the first moment of the reduced distribution function, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Proton Velocity moment estimate, upper uncertainty, in the Radial-Tangential-Normal frame, all Qs

Time Series defined by using: EPOCH

vp_moment_RTN_deltahigh

Proton, p, Velocity, V estimate, upper uncertainty, from the first moment of the reduced distribution function, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Velocity moment estimate, lower uncertainty, in the Radial-Tangential-Normal frame, all Qs

Time Series defined by using: EPOCH

vp_moment_RTN_deltalow

Proton, p, Velocity, V estimate, lower uncertainty, from the first moment of the reduced distribution function, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Number Density moment estimate, all Qs

Time Series defined by using: EPOCH

np_moment

Proton, p, Number Density, n estimate, from the zeroth moment of the reduced distribution function, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Proton Number Density moment estimate, upper uncertainty, all Qs

Time Series defined by using: EPOCH

np_moment_deltahigh

Proton, p, Number Density, n estimate, upper uncertainty, from the zeroth moment of the reduced distribution function, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Proton Number Density moment estimate, lower uncertainty, all Qs

Time Series defined by using: EPOCH

np_moment_deltalow

Proton, p, Number Density, n estimate, lower uncertainty, from the zeroth moment of the reduced distribution function, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Proton most probable Radial Thermal Speed moment estimate, all Qs

Time Series defined by using: EPOCH

wp_moment

Proton, p, most probable Radial Thermal Speed, Vth estimate, from the second moment of the reduced distribution function, all data qualities

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Proton most probable Radial Thermal Speed moment estimate, upper uncertainty, all Qs

Time Series defined by using: EPOCH

wp_moment_deltahigh

Proton, p, most probable Radial Thermal Speed, Vth estimate, upper uncertainty, from the second moment of the reduced distribution function, all data qualities

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Proton most probable Radial Thermal Speed moment estimate, lower uncertainty, all Qs

Time Series defined by using: EPOCH

wp_moment_deltalow

Proton, p, most probable Radial Thermal Speed, Vth estimate, lower uncertainty, from the second moment of the reduced distribution function, all data qualities

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Primary Proton Population Velocity estimate, in the Spacecraft frame, all Qs

Time Series defined by using: EPOCH

vp1_fit_SC

Primary Proton Population, p, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Spacecraft, Spacecraft frame, all data qualities

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Primary Proton Population Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

vp1_fit_SC_uncertainty

Primary Proton Population, p, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Primary Proton Population Velocity estimate, in the Radial-Tangential-Normal frame, all Qs

Time Series defined by using: EPOCH

vp1_fit_RTN

Primary Proton Population, p, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, all data qualities

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Primary Proton Population Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

vp1_fit_RTN_uncertainty

Primary Proton Population, p, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Primary Proton Population Number Density estimate, all Qs

Time Series defined by using: EPOCH

np1_fit

Primary Proton Population, p, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Primary Proton Population Number Density estimate, all Qs

Time Series defined by using: EPOCH

np1_fit_uncertainty

Primary Proton Population, p, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Primary Proton Population most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wp1_fit

Primary Proton Population, p, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Primary Proton Population most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wp1_fit_uncertainty

Primary Proton Population, p, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Proton Velocity estimate, in the Spacecraft frame, all Qs

Time Series defined by using: EPOCH

vp_fit_SC

Proton, p, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Spacecraft, Spacecraft frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Proton Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

vp_fit_SC_uncertainty

Proton, p, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Velocity estimate, in the Radial-Tangential-Normal frame, all Qs

Time Series defined by using: EPOCH

vp_fit_RTN

Proton, p, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Proton Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

vp_fit_RTN_uncertainty

Proton, p, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Proton Number Density estimate, all Qs

Time Series defined by using: EPOCH

np_fit

Proton, p, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Proton Number Density estimate, all Qs

Time Series defined by using: EPOCH

np_fit_uncertainty

Proton, p, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Proton most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wp_fit

Proton, p, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Proton most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wp_fit_uncertainty

Proton, p, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Alpha Particle Velocity estimate, in the Spacecraft frame, all Qs

Time Series defined by using: EPOCH

va_fit_SC

Alpha Particle, He++, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Spacecraft, Spacecraft frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Alpha Particle Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

va_fit_SC_uncertainty

Alpha Particle, He++, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Alpha Particle Velocity estimate, in the Radial-Tangential-Normal frame, all Qs

Time Series defined by using: EPOCH

va_fit_RTN

Alpha Particle, He++, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Alpha Particle Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

va_fit_RTN_uncertainty

Alpha Particle, He++, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Alpha Particle Number Density estimate, all Qs

Time Series defined by using: EPOCH

na_fit

Alpha Particle, He++, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Alpha Particle Number Density estimate, all Qs

Time Series defined by using: EPOCH

na_fit_uncertainty

Alpha Particle, He++, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Alpha Particle most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wa_fit

Alpha Particle, He++, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Alpha Particle most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

wa_fit_uncertainty

Alpha Particle, He++, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Population 3 Velocity estimate, in the Spacecraft frame, all Qs

Time Series defined by using: EPOCH

v3_fit_SC

Population 3, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Spacecraft, Spacecraft frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Population 3 Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

v3_fit_SC_uncertainty

Population 3, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Population 3 Velocity estimate, in the Radial-Tangential-Normal frame, all Qs

Time Series defined by using: EPOCH

v3_fit_RTN

Population 3, Velocity, V estimate, from 1-dimensional Maxwellian fitting, in the Radial-Tangential-Normal, Radial-Tangential-Normal frame, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

-1.0e+31

Population 3 Velocity estimate, uncertainty, all Qs

Time Series defined by using: EPOCH

v3_fit_RTN_uncertainty

Population 3, Velocity, V estimate, one sigma error uncertainty, from 1-dimensional Maxwellian fitting, all data qualities

The mission elapsed time string is constructed as met_seconds+':'+met_subseconds_base50000, where: met_seconds is the CCSDS_MET value cast as an integer string with no whitespace and met_subseconds_base50000 is an "I05" format integer string formed by converting the xxx_SUBSEC value to units of 1/50000 second. For example, if the xxx_SUBSEC value is recorded in parts per 65536 o second, the correct procedure would be to round 50000*(xxx_SUBSEC/65536) to the nearest integer and cast a string by using the "I05" format. Here, CCSDS_MET is the mission elapsed time, in seconds, from the PSP Epoch, which is defined to be January 1, 2010, 12:00:00 UTC and xxx_SUBSEC is the elapsed time in fractional seconds since the last tick of MET typically in units of 2^-16 seconds.

PT0.2185S

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Population 3 Number Density estimate, all Qs

Time Series defined by using: EPOCH

n3_fit

Population 3, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.01

10000.0

-1.0e+31

Population 3 Number Density estimate, all Qs

Time Series defined by using: EPOCH

n3_fit_uncertainty

Population 3, Number Density, n estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

cm^-3

1.0e6>m^-3

0.001

10000.0

-1.0e+31

Population 3 most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

w3_fit

Population 3, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

1.0

1000.0

-1.0e+31

Population 3 most probable Radial Thermal Speed estimate, all Qs

Time Series defined by using: EPOCH

w3_fit_uncertainty

Population 3, most probable Radial Thermal Speed, Vth estimate, from 1-dimensional Maxwellian fitting, all data qualities

PT0.2185S

km/s

1.0e3>m/s

0.001

10000.0

-1.0e+31

Population 3 Identifier, all Qs

Time Series defined by using: EPOCH

pop3_mtoq

Population 3 Identifier, the third population fit, that is, in addition to primary Proton and Alpha peaks, all data qualities

When the n3_fit, w3_fit, and/or v3_fit variables are valid, they indicate tha third ion population has been measured in addition to the primary proton and alpha particle populations. This variable indicates the estimated mass-per-charge for that population, in fundamental units, i.e. protons=1/1=1, alphas=4/2=2, O6=16/6=2.67. Populatio most typically characterize proton shoulder or beam with mass-per-charge equal to one.

PT0.2185S

u/e

1.0

1000.0

-1.0e+31

Data Quality Flag, Flag Names

DQF_flagnames

Data Quality Flag: The names of the data quality array fields.

The zeroth flag array element is the standardized global quality flag signifying whether the data are suitable for use without caveate. Refer to the Solar Probe Cup, SPC, Science Data Center documentation for descriptions of other elements and value definitions.

PT0.2185S

UNKNOWN_VALID_MIN

UNKNOWN_VALID_MAX