ACE Solar Wind Ion Composition Spectrometer (SWICS) Solar Wind Plasma Elemental and Isotopic Density, Speed, Thermal Speed, Charge State, and Ratio Parameters, Level 2 (L2), 2 h Data

https://doi.org/10.48322/mvcn-0276

2023-07-30 12:34:56.789

This ACE SWICS/SWIMS Data Set contains the Alpha Particle Number Density, He/O, C/O, Ne/O, Mg/O, Si/O, Fe/O Abundance Ratios, C, O, Mg, Si, Fe Average Charge States, C+6/C+4, C+6/C+5, O+7/O+6 Charge State Ratios, He+2, C+5, O+6, Fe+10 Speeds and Thermal Speeds, and a Solar Wind Type Parameter that characterizes the Solar Wind as either Streamer, Coronal Hole, Coronal Mass Ejection (CME), or Unidentified. The Solar Wind Ion Composition Spectrometer (SWICS), prior to August 23, 2011 and denoted as SWICS Version 1.1, determines uniquely the Chemical and Ionic Charge State Composition of the Solar Wind, the Temperatures and Mean Speeds of major Solar Wind Ions at all Speeds above 300 km/s for Protons and 170 km/s for Fe+16, and resolves Protons and Helium Isotopes of Solar and Interstellar Sources. SWICS 1.1 measures the Distribution Functions of Interstellar Cloud Pick-Up Ions and Interplanetary Dust Cloud Pick-Up Ions up to Energies of 100 keV/e. The ACE SWICS 1.1 Data Products represent a new Release of the Data with significantly improved Time Series Measurements for the Elemental Abundance, Charge State Composition, and Kinetic Properties of Heavy Ions in the Solar Wind. It is a major new Update produced with completely redesigned Analysis Methods to account more rigorously for Instrumental and Statistical Effects (Shearer et al., 2014). Rare Elements are now identified more reliably and Estimates of Statistical Error are provided. Release Notes are available that describe the Data, the Methods used to determine the Data Values, and Issues concerning Data Quality and Measurement Uncertainty. The Quality of ACE Level 2 Data is such that it is suitable for serious Scientific Study. However, to avoid Confusion and Misunderstanding, it is recommended that Users consult with the appropriate ACE Team Members before publishing Work derived from the Data. The ACE Team has worked hard to ensure that the Level 2 Data are free from Errors, but the Team cannot accept Responsibility for Erroneous Data, or for Misunderstandings about how the Data may be used. This is especially true if the appropriate ACE Team Members are not consulted before Publication. At the very least, Preprints should be forwarded to the ACE Team before Publication. For more Information about the SWICS Instrument, visit the SWICS Home Page at http://solar-heliospheric.engin.umich.edu/ace.

G. Gloeckler, Please acknowledge the Principal Investigator, G. Gloeckler of University of Maryland See the Rules of Use available from the ACE Science Center at: http://www.srl.caltech.edu/ace/asc/level2/policy_lvl2.html.

spase://VSPO/NumericalData/ACE/SWICS_SWIMS/L2/PT2HR

spase://VSPO/NumericalData/ACE/SWICS_SWIMS/L2/PT2H

Online

Open

CDF

None

G. Gloeckler, Please acknowledge the Principal Investigator, G. Gloeckler of University of Maryland See the Rules of Use available from the ACE Science Center at: http://www.srl.caltech.edu/ace/asc/level2/policy_lvl2.html. Please acknowledge the Data Providers and CDAWeb when using these Data.

Online

Open

CSV

G. Gloeckler, Please acknowledge the Principal Investigator, G. Gloeckler of University of Maryland See the Rules of Use available from the ACE Science Center at: http://www.srl.caltech.edu/ace/asc/level2/policy_lvl2.html. Please acknowledge the Data Providers and CDAWeb when using these Data.

PT2H

Epoch Time

Epoch

Epoch Time, Beginning of Interval

Average Type: standard This Parameter exhibits an increasing Monotonic Progression.

PT2H

ms

1.0e-3>s

01-Jan-1996 00:00:00.000

01-Jan-2020 00:00:00.000

-1.0e+31

Time PB5

Time Series defined by using: EPOCH

Time_PB5

Time PB5, Time of Observation, Year, Day, and Milliseconds of Day

This Parameter exhibits an increasing Monotonic Progression.

PT2H

-2147483648

Alpha Particle, He+2, Number Density

Time Series defined by using: EPOCH

nHe2

Solar Wind Alpha Particle, Helium+2, Number Density

nHe2 is the Number Density of Alpha Particles in the Solar Wind, in #/cm^3

PT2H

cm^-3

1.0e6>m^-3

0.0

200.0

-1.0e+31

Alpha Particle, He+2, Number Density, Error

Time Series defined by using: EPOCH

nHe2_err

Solar Wind Alpha Particle, Helium+2, Number Density, Statistical Uncertainty

nHe2_err is the Statistical Uncertainty in the Number Density of Alpha Particles in the Solar Wind, in #/cm^3

PT2H

cm^-3

1.0e6>m^-3

0.0

200.0

-1.0e+31

Solar Wind He+2 Speed

Time Series defined by using: EPOCH

vHe2

Solar Wind Alpha Particle, Helium+2, Speed

vHe2 is the mean Alpha Particle Speed in the Solar Wind, in km/s

PT2H

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Solar Wind He+2 Thermal Speed

Time Series defined by using: EPOCH

vthHe2

Solar Wind Alpha Particle, Helium+2, Thermal Speed

vthHe2 is the Alpha Particle Thermal Speed in the Solar Wind, in km/s

PT2H

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Solar Wind He+2 Speed, Flag

Time Series defined by using: EPOCH

He_qual

Solar Wind Alpha Particle, Helium+2, Speed, Data Quality Flag

He_qual is the Data Quality Flag for Helium Speed and Density Data. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Solar Wind C+5 Speed

Time Series defined by using: EPOCH

vC5

Solar Wind Carbon+5 Speed

vC5 is the mean Carbon+5 Ion Speed in the Solar Wind, in km/s.

PT2H

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Solar Wind C+5 Thermal Speed

Time Series defined by using: EPOCH

vthC5

Solar Wind Carbon+5 Thermal Speed

vthC5 is the Thermal Speed of Carbon+5 in the Solar Wind, in km/s.

PT2H

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Solar Wind C+5 Speed, Flag

Time Series defined by using: EPOCH

C5_qual

Solar Wind Carbon+5 Speed, Data Quality Flag

C5_qual is the Quality Flag for C+5 Speed and Thermal Speed Data. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Solar Wind O+6 Speed

Time Series defined by using: EPOCH

vO6

Solar Wind Oxygen+6 Speed

vO6 is the mean Oxygen+6 Ion Speed in the Solar Wind, in km/s.

PT2H

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Solar Wind O+6 Thermal Speed

Time Series defined by using: EPOCH

vthO6

Solar Wind Oxygen+6 Thermal Speed

vthO6 is the Thermal Speed of Oxygen+6 in the Solar Wind, in km/s.

PT2H

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Solar Wind O+6 Speed, Flag

Time Series defined by using: EPOCH

O6_qual

Solar Wind Oxygen+6 Speed, Data Quality Flag

O6_qual is the Quality Flag for O+6 Speed and Thermal Speed Data. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Solar Wind Fe+10 Speed

Time Series defined by using: EPOCH

vFe10

Solar Wind Iron+10 Speed

vFe10 is the mean Fe+10 Ion Speed in the Solar Wind, in km/s.

PT2H

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Solar Wind Fe+10 Thermal Speed

Time Series defined by using: EPOCH

vthFe10

Solar Wind Iron+10 Thermal Speed

vthFe10 is the Thermal Speed of Fe+10 in the Solar Wind, in km/s.

PT2H

km/s

1.0e3>m/s

0.0

2000.0

-1.0e+31

Solar Wind Fe+10 Speed, Flag

Time Series defined by using: EPOCH

Fe10_qual

Solar Wind Iron+10 Speed, Data Quality Flag

Fe10_qual is the Quality Flag for Fe+10 Speed and Thermal Speed Data. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

C+6/C+4, Charge State Ratio

Time Series defined by using: EPOCH

C6to4

Carbon, C+6/C+4, Solar Wind Charge State Ratio

C6to4 is the C+6/C+4 Solar Wind Charge State Ratio

PT2H

0.0

100.0

-1.0e+31

C+6/C+4, Charge State Ratio, Error

Time Series defined by using: EPOCH

C6to4_err

Carbon, C+6/C+4, Solar Wind Charge State Ratio, Statistical Uncertainty

C6to4_err is the C+6/C+4 Solar Wind Charge State Ratio Statistical Uncertainty

PT2H

0.0

100.0

-1.0e+31

C+6/C+4, Charge State Ratio, Flag

Time Series defined by using: EPOCH

C6to4_qual

Carbon, C+6/C+4, Solar Wind Charge State Ratio, Data Quality Flag

C6to4_qual is the Quality Flag for C+6/C+4 Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

C+6/C+5, Charge State Ratio

Time Series defined by using: EPOCH

C6to5

Carbon, C+6/C+5, Solar Wind Charge State Ratio

C6to5 is the C+6/C+5 Solar Wind Charge State Ratio

PT2H

0.0

100.0

-1.0e+31

C+6/C+5, Charge State Ratio, Error

Time Series defined by using: EPOCH

C6to5_err

Carbon, C+6/C+5, Solar Wind Charge State Ratio, Statistical Uncertainty

C6to5_err is the C+6/C+5 Solar Wind Charge State Ratio Statistical Uncertainty

PT2H

0.0

100.0

-1.0e+31

C+6/C+5, Charge State Ratio, Flag

Time Series defined by using: EPOCH

C6to5_qual

Carbon, C+6/C+5, Solar Wind Charge State Ratio, Data Quality Flag

C6to5_qual is the Quality Flag for C+6/C+5 Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

O+7/O+6, Charge State Ratio

Time Series defined by using: EPOCH

O7to6

Oxygen, O+7/O+6, Solar Wind Charge State Ratio

O7to6 is the O+7/O+6 Solar Wind Charge State Ratio

PT2H

0.0

100.0

-1.0e+31

O+7/O+6, Charge State Ratio, Error

Time Series defined by using: EPOCH

O7to6_err

Oxygen, O+7/O+6, Solar Wind Charge State Ratio, Statistical Uncertainty

O7to6_err is the O+7/O+6 Solar Wind Charge State Ratio Statistical Uncertainty

PT2H

0.0

100.0

-1.0e+31

O+7/O+6, Charge State Ratio, Flag

Time Series defined by using: EPOCH

O7to6_qual

Oxygen, O+7/O+6, Solar Wind Charge State Ratio, Data Quality Flag

O7to6_qual is the Quality Flag for O+7/O+6 Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

C, Average Charge State

Time Series defined by using: EPOCH

avqC

Carbon, Solar Wind Average Charge State, Q

avqC is the Carbon Solar Wind average Charge State

PT2H

q

1.60217662e-19>C

0.0

6.0

-1.0e+31

C, Average Charge State, Error

Time Series defined by using: EPOCH

avqC_err

Carbon, Solar Wind Average Charge State, Q, Statistical Uncertainty

avqC is the C <Q-state> Statistical Uncertainty

PT2H

q

1.60217662e-19>C

0.0

6.0

-1.0e+31

C, Average Charge State, Flag

Time Series defined by using: EPOCH

avqC_qual

Carbon, Solar Wind Average Charge State, Q, Data Quality Flag

avqC_qual is the Quality Flag for avqC average Charge State. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

O, Average Charge State

Time Series defined by using: EPOCH

avqO

Oxygen, Solar Wind Average Charge State, Q

avqO is the Oxygen Solar Wind average Charge State

PT2H

q

1.60217662e-19>C

0.0

8.0

-1.0e+31

O, Average Charge State, Error

Time Series defined by using: EPOCH

avqO_err

Oxygen, Solar Wind Average Charge State, Q, Statistical Uncertainty

avqO is the O <Q-state> Statistical Uncertainty

PT2H

q

1.60217662e-19>C

0.0

8.0

-1.0e+31

O, Average Charge State, Flag

Time Series defined by using: EPOCH

avqO_qual

Oxygen, Solar Wind Average Charge State, Q, Data Quality Flag

avqO_qual is the Quality Flag for avqO average Charge State. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Mg, Average Charge State

Time Series defined by using: EPOCH

avqMg

Magnesium, Solar Wind Average Charge State, Q

avqMg is the Magnesium Solar Wind average Charge State

PT2H

q

1.60217662e-19>C

0.0

12.0

-1.0e+31

Mg, Average Charge State, Error

Time Series defined by using: EPOCH

avqMg_err

Magnesium, Solar Wind Average Charge State, Q, Statistical Uncertainty

avqMg is the Mg <Q-state> Statistical Uncertainty

PT2H

q

1.60217662e-19>C

0.0

12.0

-1.0e+31

Mg, Average Charge State, Flag

Time Series defined by using: EPOCH

avqMg_qual

Magnesium, Solar Wind Average Charge State, Q, Data Quality Flag

avqMg_qual is the Quality Flag for avqMg average Charge State. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Si, Average Charge State

Time Series defined by using: EPOCH

avqSi

Silicon, Solar Wind Average Charge State, Q

avqSi is the Silicon Solar Wind average Charge State

PT2H

q

1.60217662e-19>C

0.0

14.0

-1.0e+31

Si, Average Charge State, Error

Time Series defined by using: EPOCH

avqSi_err

Silicon, Solar Wind Average Charge State, Q, Statistical Uncertainty

avqSi is the Si <Q-state> Statistical Uncertainty

PT2H

q

1.60217662e-19>C

0.0

14.0

-1.0e+31

Si, Average Charge State, Flag

Time Series defined by using: EPOCH

avqSi_qual

Silicon, Solar Wind Average Charge State, Q, Data Quality Flag

avqSi_qual is the Quality Flag for avqSi average Charge State. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Fe, Average Charge State

Time Series defined by using: EPOCH

avqFe

Iron, Solar Wind Average Charge State, Q

avqFe is the Iron Solar Wind average Charge State

PT2H

q

1.60217662e-19>C

0.0

26.0

-1.0e+31

Fe, Average Charge State, Error

Time Series defined by using: EPOCH

avqFe_err

Iron, Solar Wind Average Charge State, Q, Statistical Uncertainty

avqFe is the Fe <Q-state> Statistical Uncertainty

PT2H

q

1.60217662e-19>C

0.0

26.0

-1.0e+31

Fe, Average Charge State, Flag

Time Series defined by using: EPOCH

avqFe_qual

Iron, Solar Wind Average Charge State, Q, Data Quality Flag

avqFe_qual is the Quality Flag for avqFe average Charge State. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

He/O, Elemental Abundance Ratio

Time Series defined by using: EPOCH

HetoO

Helium to Oxygen, He/O, Solar Wind Charge State Ratio

HetoO is the He/O Solar Wind Elemental Abundance Ratio

PT2H

0

1000

-1.0e+31

He/O, Elemental Abundance Ratio, Error

Time Series defined by using: EPOCH

HetoO_err

Helium to Oxygen, He/O, Solar Wind Charge State Ratio, Statistical Uncertainty

HetoO_err is the He/O Solar Wind Elemental Abundance Ratio Statistical Uncertainty

PT2H

0

1000

-1.0e+31

He/O, Elemental Abundance Ratio, Flag

Time Series defined by using: EPOCH

HetoO_qual

Helium to Oxygen, He/O, Solar Wind Charge State Ratio, Data Quality Flag

HetoO_qual is the Quality Flag for He/O Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

C/O, Elemental Abundance Ratio

Time Series defined by using: EPOCH

CtoO

Carbon to Oxygen, C/O, Solar Wind Charge State Ratio

CtoO is the C/O Solar Wind Elemental Abundance Ratio

PT2H

0

10

-1.0e+31

C/O, Elemental Abundance Ratio, Error

Time Series defined by using: EPOCH

CtoO_err

Carbon to Oxygen, C/O, Solar Wind Charge State Ratio, Statistical Uncertainty

CtoO_err is the C/O Solar Wind Elemental Abundance Ratio Statistical Uncertainty

PT2H

0

10

-1.0e+31

C/O, Elemental Abundance Ratio, Flag

Time Series defined by using: EPOCH

CtoO_qual

Carbon to Oxygen, C/O, Solar Wind Charge State Ratio, Data Quality Flag

CtoO_qual is the Quality Flag for C/O Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Ne/O, Elemental Abundance Ratio

Time Series defined by using: EPOCH

NetoO

Neon to Oxygen, Ne/O, Solar Wind Charge State Ratio

NetoO is the Ne/O Solar Wind Elemental Abundance Ratio

PT2H

0

10

-1.0e+31

Ne/O, Elemental Abundance Ratio, Error

Time Series defined by using: EPOCH

NetoO_err

Neon to Oxygen, Ne/O, Solar Wind Charge State Ratio, Statistical Uncertainty

NetoO_err is the Ne/O Solar Wind Elemental Abundance Ratio Statistical Uncertainty

PT2H

0

10

-1.0e+31

Ne/O, Elemental Abundance Ratio, Flag

Time Series defined by using: EPOCH

NetoO_qual

Neon to Oxygen, Ne/O, Solar Wind Charge State Ratio, Data Quality Flag

NetoO_qual is the Quality Flag for Ne/O Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Mg/O, Elemental Abundance Ratio

Time Series defined by using: EPOCH

MgtoO

Magnesium to Oxygen, Mg/O, Solar Wind Charge State Ratio

MgtoO is the Mg/O Solar Wind Elemental Abundance Ratio

PT2H

0

10

-1.0e+31

Mg/O, Elemental Abundance Ratio, Error

Time Series defined by using: EPOCH

MgtoO_err

Magnesium to Oxygen, Mg/O, Solar Wind Charge State Ratio, Statistical Uncertainty

MgtoO_err is the Mg/O Solar Wind Elemental Abundance Ratio Statistical Uncertainty

PT2H

0

10

-1.0e+31

Mg/O, Elemental Abundance Ratio, Flag

Time Series defined by using: EPOCH

MgtoO_qual

Magnesium to Oxygen, Mg/O, Solar Wind Charge State Ratio, Data Quality Flag

MgtoO_qual is the Quality Flag for Mg/O Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Si/O, Elemental Abundance Ratio

Time Series defined by using: EPOCH

SitoO

Silicon to Oxygen, Si/O, Solar Wind Charge State Ratio

SitoO is the Si/O Solar Wind Elemental Abundance Ratio

PT2H

0

10

-1.0e+31

Si/O, Elemental Abundance Ratio, Error

Time Series defined by using: EPOCH

SitoO_err

Silicon to Oxygen, Si/O, Solar Wind Charge State Ratio, Statistical Uncertainty

SitoO_err is the Si/O Solar Wind Elemental Abundance Ratio Statistical Uncertainty

PT2H

0

10

-1.0e+31

Si/O, Elemental Abundance Ratio, Flag

Time Series defined by using: EPOCH

SitoO_qual

Silicon to Oxygen, Si/O, Solar Wind Charge State Ratio, Data Quality Flag

SitoO_qual is the Quality Flag for Si/O Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Fe/O, Elemental Abundance Ratio

Time Series defined by using: EPOCH

FetoO

Iron to Oxygen, Fe/O, Solar Wind Elemental Abundance Ratio

FetoO is the Fe/O Solar Wind Elemental Abundance Ratio

PT2H

0

10

-1.0e+31

Fe/O, Elemental Abundance Ratio, Error

Time Series defined by using: EPOCH

FetoO_err

Iron to Oxygen, Fe/O, Solar Wind Elemental Abundance Ratio, Statistical Uncertainty

FetoO_err is the Fe/O Solar Wind Elemental Abundance Ratio Statistical Uncertainty

PT2H

0

10

-1.0e+31

Fe/O, Elemental Abundance Ratio, Flag

Time Series defined by using: EPOCH

FetoO_qual

Iron to Oxygen, Fe/O, Solar Wind Elemental Abundance Ratio, Data Quality Flag

FetoO_qual is the Quality Flag for Fe/O Ratio. 0=Good Quality. Non-Zero=See Release Notes.

PT2H

0

16

-1

Solar Wind Type

Time Series defined by using: EPOCH

SW_type

Solar Wind Type: 0=Streamer, 1=Coronal Hole 2=Coronal Mass Ejection (CME), 3=Unidentified

PT2H

0

3

-1