Van Allen Probe A ECT HOPE Science Release #4 Spin Averaged Level 2 Data

https://doi.org/10.48322/rcxw-mm23

2022-08-18 12:34:56.789

RBSP-A Energetic Particle, Composition, and Thermal Plasma Suite (ECT) Helium Oxygen Proton Electron Electrostatic Analyzer (HOPE) Spin-Averaged Science Data. Electron ~15 to 50,000 eV, Ion ~1 to 50,000 eV Fluxes, Electrons and Ions measured in Alternate Spin Cadence

Herb Funsten, Ruth Skoug, Reiner Friedel

spase://VSPO/NumericalData/RBSP/A/ECT/HOPE/L2/SpinAverage/Release03/PT24S

spase://VSPO/NumericalData/RBSP/A/ECT/HOPE/Science/Release03/SpinAverage/Level2

spase://ViRBO/NumericalData/RBSP/A/ECT/HOPE-SCI-L2SA/PT24S

spase://VSPO/NumericalData/RBSP/A/ECT/HOPE/L2/SpinAverage/Release04/PT24S

Online

Open

CDF

None

Herb Funsten, Ruth Skoug, Reiner Friedel. Please acknowledge the data providers and CDAWeb when using these data.

Online

Open

CSV

Herb Funsten, Ruth Skoug, Reiner Friedel. Please acknowledge the data providers and CDAWeb when using these data.

PT24S

Epoch

Epoch

Default time

Epoch, UT

ms

1.0e3>s

Satellite position (GEO)

Position_Ion

Position of the satellite in geographic coordinates (ion timebase)

Origin = Earths center of mass. X = Intersection of Greenwich meridian and geographic equator. Z = Geographic North Pole. Y = completes a right-handed Cartesian triad. Interpolated to ion measurement timebase from 1 min. resolution MagEphem file.

km

1.0e3>m

Satellite position (GEO)

Position_Ele

Position of the satellite in geographic coordinates (electron timebase)

Origin = Earths center of mass. X = Intersection of Greenwich meridian and geographic equator. Z = Geographic North Pole. Y = completes a right-handed Cartesian triad. Interpolated to electron measurement timebase from 1 min. resolution MagEphem file.

km

1.0e3>m

Magnetic field strength

B_Calc_Ion

Model magnetic field strength (ion timebase)

Interpolated to ion measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

nT

1.0e-9>T

Magnetic field strength

B_Calc_Ele

Model magnetic field strength (electron timebase)

Interpolated to electron measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

nT

1.0e-9>T

Equatorial magnetic field strength

B_Eq_Ion

Model magnetic field strength at magnetic equator (ion timebase)

Interpolated to ion measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

nT

1.0e-9>T

Equatorial magnetic field strength

B_Eq_Ele

Model magnetic field strength at magnetic equator (electron timebase)

Interpolated to electron measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

nT

1.0e-9>T

McIlwains L parameter

L_Ion

Calculated McIlwains L parameter (ion timebase)

Interpolated to ion measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

McIlwains L parameter

L_Ele

Calculated McIlwains L parameter (electron timebase)

Interpolated to electron measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

Roederers L* parameter

L_star_Ion

Calculated Roederers L* parameter (ion timebase)

Interpolated to ion measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

Roederers L* parameter

L_star_Ele

Calculated Roederers L* parameter (electron timebase)

Interpolated to electron measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

Adiabatic invariant (bounce)

I_Ion

Adiabatic invariant (bounce) (ion timebase)

Interpolated to ion measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

none

none

Adiabatic invariant (bounce)

I_Ele

Adiabatic invariant (bounce) (electron timebase)

Interpolated to electron measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

none

none

Magnetic Local Time

MLT_Ion

Calculated Magnetic Local Time (ion timebase)

Interpolated to ion measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

h

0.2618>rad

Magnetic Local Time

MLT_Ele

Calculated Magnetic Local Time (electron timebase)

Interpolated to electron measurement timebase from 1 min. resolution MagEphem file. Calculated with LANLGeomag library. Internal field: IGRF. External field: OP77Q.

h

0.2618>rad

Satellite position (GEO)

Position_Ion_TT

[Labels on plots] Position of the satellite in geographic coordinates(ion)

Origin = Earths center of mass. X = Intersection of Greenwich meridian and geographic equator. Z = Geographic North Pole. Y = completes a right-handed Cartesian triad

km

1.0e-3>m

Magnetic field strength

B_Calc_Ion_TT

Calculated magnetic field strength (ion)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

nT

1.0e9>T

Equatorial magnetic field strength

B_Eq_Ion_TT

Calculated magnetic field strength at magnetic equator(ion)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

nT

1.0e9>T

McIlwains L parameter

L_Ion_TT

Calculated McIlwains L parameter (Earths radii, ion)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

R_E

1.5696e-7>m

Roederers L* parameter

L_star_Ion_TT

Calculated Roederers L* parameter (Earths radii, ion)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

R_E

1.5696e-7>m

Adiabatic invariant (bounce)

I_Ion_TT

Adiabatic invariant (bounce, ion)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

none

none

Magnetic Local Time

MLT_Ion_TT

Calculated Magnetic Local Time (hours, ion)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

h

2.778e-4>s

Satellite positele (GEO)

Positele_Ele_TT

[Labels on plots] Positele of the satellite in geographic coordinates(ele)

Origin = Earths center of mass. X = Intersectele of Greenwich meridian and geographic equator. Z = Geographic North Pole. Y = completes a right-handed Cartesian triad

km

Magnetic field strength

B_Calc_Ele_TT

Calculated magnetic field strength (ele)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

nT

Equatorial magnetic field strength

B_Eq_Ele_TT

Calculated magnetic field strength at magnetic equator(ele)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

nT

McIlwains L parameter

L_Ele_TT

Calculated McIlwains L parameter (Earths radii, ele)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

R_E

Roederers L* parameter

L_star_Ele_TT

Calculated Roederers L* parameter (Earths radii, ele)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

R_E

Adiabatic invariant (bounce)

I_Ele_TT

Adiabatic invariant (bounce, ele)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

none

Magnetic Local Time

MLT_Ele_TT

Calculated Magnetic Local Time (hours, ele)

Calculated using ONERA-DESP library Internal field: DGRF/IGRF External field: Olson and Pfitzer quiet

h

Detector No.

HOPE_DETECTOR

Detector No.

Sector No.

HOPE_SECTOR

Sector No.

Sector_Collapse for Counters data

Sector_Collapse_Cntr

Collapse method used for a given pixel.

For a given pixel, the number of spin angle sectors which are collapsed on board to fit the telemetry allocation. The collapse method sums all values together, then compresses according to the following algorithm: if (sum < 16384) {return sum} else {return ((sum-16384)/64) + 16384}

Acquisition_Period

Acquisition_Period

Acquisition_Period

The length of a single ESA step acquisition

ms

Plan

Plan

Science data acquisition Plan

Which science plan was used for the acquisition. The seclected science plan determines the ESA Sweep, TOF DAC, data product selection, and data collapse method used for an acquisition. As a general rule, plans 0-7 and 15 are reserved for HOPE nominal operations, and 8-14 are reserved for burst support operations.

Plan_Step

Plan_Step

Plan_Step

Which step within a science plan was used. Each science plan consists of up to 16 steps, each of which can specify different HVPS and telemetry configuration settings.

ESA_Volt

ESA_Volt

ESA_Volt

Absolute values of the ESA voltage that was used for each energy step.

V

1.0>V

Epoch_Ion

Epoch_Ion

Default time

Epoch at times of ion mode measurements

ms

Epoch_Ion_DELTA

Epoch_Ion_DELTA

Half sample time

Half the HOPE frame time

ms

1.0e-3>s

Epoch_Ele

Epoch_Ele

Default time

Epoch at times of electron mode measurements

ms

Epoch_Ele_DELTA

Epoch_Ele_DELTA

Half sample time

Half the HOPE frame time

ms

1.0e-3>s

ESA_Polarity

ESA_Polarity

Polarity of the ESA voltage.

Polarity of the ESA voltage. 0 = positive (electron mode), 1 = negative (ion mode)

ESA_Sweep

ESA_Sweep

ESA_Sweep

Which of the 16 ESA Sweep ptables was used for the acquisition.

Energy_Collapsed

Energy_Collapsed

Counter Energy Collapse

Whether or not energy collapsing was enabled for Counters (starts, stops, H+, He+, O+, e-, etc.) data. 0 = collapsed, 1 = not collapsed.

HOPE_ENERGY_Ion

HOPE_ENERGY_Ion

HOPE_ENERGY_Ion

eV

HOPE_ENERGY_Ele

HOPE_ENERGY_Ele

HOPE_ENERGY_Ele

eV

ENERGY_Ele_DELTA

ENERGY_Ele_DELTA

ENERGY_Ele_DELTA

eV

ENERGY_Ion_DELTA

ENERGY_Ion_DELTA

ENERGY_Ion_DELTA

eV

Flags_Ion

Flags_Ion

Flags on ion data

Flags to indicate potential issues with the ion data. Each element of this array contains the flag status for a particular concern. A flag value of zero indicates no unusual concerns of that type for that time sample. Increasing flag values indicate increasing concern. See FLAGS variable for a description of each element.

Flags_Ele

Flags_Ele

Flags on electron data

Flags to indicate potential issues with electron data. Each element of this array contains the flag status for a particular concern. A flag value of zero indicates no unusual concerns of that type for that time sample. Increasing flag values indicate increasing concern. See FLAGS variable for a description of each element.

FOSA

FOSA

HOPE Spin averaged differential oxygen flux (as spectrogram)

HOPE flux as a function of energy (72), averaged across spin and all detectors. Flux from each detector is weighted by the fraction of the unit sphere it samples in one spin (9.5% 25% 31% 25% 9.5%). Note that a HOPE spin oversamples the spacecraft spin so expect a slight bias depending on the flux in the oversampled spin phase for each spin

s!E-1!Ncm!E-2!Nster!E-1!NkeV!E-1!N

FOSA

FOSA_ts

as stacked time-series

HOPE flux as a function of energy (72), averaged across spin and all detectors. Flux from each detector is weighted by the fraction of the unit sphere it samples in one spin (9.5% 25% 31% 25% 9.5%). Note that a HOPE spin oversamples the spacecraft spin so expect a slight bias depending on the flux in the oversampled spin phase for each spin

s!E-1!Ncm!E-2!Nster!E-1!NkeV!E-1!N

FPSA

FPSA

HOPE Spin averaged differential proton flux

HOPE flux as a function of energy (72), averaged across spin and all detectors. Flux from each detector is weighted by the fraction of the unit sphere it samples in one spin (9.5% 25% 31% 25% 9.5%). Note that a HOPE spin oversamples the spacecraft spin so expect a slight bias depending on the flux in the oversampled spin phase for each spin

s!E-1!Ncm!E-2!Nster!E-1!NkeV!E-1!N

FPSA

FPSA_ts

as stacked time-series

HOPE flux as a function of energy (72), averaged across spin and all detectors. Flux from each detector is weighted by the fraction of the unit sphere it samples in one spin (9.5% 25% 31% 25% 9.5%). Note that a HOPE spin oversamples the spacecraft spin so expect a slight bias depending on the flux in the oversampled spin phase for each spin

s!E-1!Ncm!E-2!Nster!E-1!NkeV!E-1!N

FHESA

FHESA

HOPE Spin averaged differential helium flux

HOPE flux as a function of energy (72), averaged across spin and all detectors. Flux from each detector is weighted by the fraction of the unit sphere it samples in one spin (9.5% 25% 31% 25% 9.5%). Note that a HOPE spin oversamples the spacecraft spin so expect a slight bias depending on the flux in the oversampled spin phase for each spin

s!E-1!Ncm!E-2!Nster!E-1!NkeV!E-1!N

FHESA

FHESA_ts

as stacked time-series

HOPE flux as a function of energy (72), averaged across spin and all detectors. Flux from each detector is weighted by the fraction of the unit sphere it samples in one spin (9.5% 25% 31% 25% 9.5%). Note that a HOPE spin oversamples the spacecraft spin so expect a slight bias depending on the flux in the oversampled spin phase for each spin

s!E-1!Ncm!E-2!Nster!E-1!NkeV!E-1!N

FESA

FESA

HOPE Spin averaged differential electron flux

HOPE flux as a function of energy (72), averaged across spin and all detectors. Flux from each detector is weighted by the fraction of the unit sphere it samples in one spin (9.5% 25% 31% 25% 9.5%). Note that a HOPE spin oversamples the spacecraft spin so expect a slight bias depending on the flux in the oversampled spin phase for each spin

s!E-1!Ncm!E-2!Nster!E-1!NkeV!E-1!N

FESA

FESA_ts

as stacked time_series

HOPE flux as a function of energy (72), averaged across spin and all detectors. Flux from each detector is weighted by the fraction of the unit sphere it samples in one spin (9.5% 25% 31% 25% 9.5%). Note that a HOPE spin oversamples the spacecraft spin so expect a slight bias depending on the flux in the oversampled spin phase for each spin

s!E-1!Ncm!E-2!Nster!E-1!NkeV!E-1!N