Version:2.6.0
NumericalData
ResourceID
spase://NASA/NumericalData/ACE/SWICS/L2/PT2H
ResourceHeader
ResourceName
ACE SWICS 2.0 Solar Wind 2-Hour Data
DOI
https://doi.org/10.48322/xcsn-8w62
ReleaseDate
2023-07-30 12:34:56.789
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 12:34:56.789
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
Description
The SWICS 2.0 dataset consists of time series measurements by ACE/SWICS of the elemental abundance, charge state composition, and kinetic distribution of heavy ions in the solar wind. This data set begins after August 23, 2011, when a radiation and age-induced hardware anomaly altered the instrument's operational state. It should not be confused with SWICS 1.1, the recalibrated data set extending from launch up to the anomaly. SWICS 2.0 continues to make heavy ion measurements which are not available from any other instrument, and new data analysis methods have been developed to address the statistical and calibration issues of the current instrument state.
PublicationInfo
Authors
Gloeckler, George, M.; McGuire, Robert, E.
PublicationDate
2023-01-01 00:00:00
PublishedBy
NASA Space Physics Data Facility
Contacts
InformationURL
Name
Release notes for SWICS 2.0 level 2 data
URL
Description
Additional details provided by the instrument team. All users of SWICS data should read these notes.
PriorIDs
spase://VSPO/NumericalData/ACE/SWICS/L2/PT2H
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
ACE Science Center (ASC)
URL
AccessURL
Name
CDAWeb
URL
ProductKey
AC_H3_SW2
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description
In CDF via ftp from CDAWeb
AccessURL
Name
HTTPS from SPDF
URL
Description
In CDF via HTTP from CDAWeb
Format
Text
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/ace/swics/level_2_cdaweb/sw2_h3/$Y
AccessFilenameTemplate
ac_h3_sw2_$Y$m$d_$v.cdf
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
Style
WebService
ProductKey
AC_H3_SW2
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
Style
HAPI
ProductKey
AC_H3_SW2
Description
Web Service to this product using the HAPI interface.
Format
CSV
ProviderProcessingLevel
CALIBRATED
InstrumentIDs
MeasurementType
ThermalPlasma
MeasurementType
IonComposition
TemporalDescription
TimeSpan
StartDate
2012-06-01 00:00:00
RelativeStopDate
-P8M
Cadence
PT2H
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
Epoch Time
ParameterKey
Epoch
Description
Number of milliseconds since the CDF epoch.
Cadence
PT2H
Units
ms
UnitsConversion
1e-3>s
ValidMin
01-Jan-1956 00:00:00.000
ValidMax
01-Jan-2083 00:00:00.000
FillValue
-1.0E31
Support
Parameter #2
Name
Solar Wind He++ Speed
ParameterKey
vHe2
Description
Solar Wind He++ speed, scalar
Cadence
PT2H
Units
km/s
ValidMin
0.0
ValidMax
2000.0
FillValue
-1.0E31
Particle
ParticleType
Ion
Qualifier
Scalar
Qualifier
Magnitude
ParticleQuantity
Velocity
Parameter #3
Name
Solar Wind He++ Thermal speed
ParameterKey
vthHe2
Description
Solar Wind He++ Thermal speed, scalar
Cadence
PT2H
Units
km/s
ValidMin
0.0
ValidMax
2000.0
FillValue
-1.0E31
Particle
ParticleType
Ion
Qualifier
Scalar
ParticleQuantity
ThermalSpeed
Parameter #4
Name
He quality flag
ParameterKey
He_qual
Description
Quality flag for the helium speed and density data. 0: value within sensitive range of SWICS 2.0 1: value saturated at lower limit 2: value saturated at upper limit
ValidMin
0.0
ValidMax
16
FillValue
-1
Support
Parameter #5
Name
C+6/C+5 Ratio
ParameterKey
C6to5
Description
C+6/C+5 Solar Wind charge_state Ratio
Cadence
PT2H
ValidMin
0.0
ValidMax
100.0
FillValue
-1.0E31
Particle
ParticleType
Ion
Qualifier
Ratio
ParticleQuantity
ChargeState
Parameter #6
Name
C+6/C+5 Ratio Err
ParameterKey
C6to5_err
Description
C+6/C+5 Statistical Uncertainty
ValidMin
0.0
ValidMax
100.0
FillValue
-1e31
Particle
ParticleType
Ion
Qualifier
Uncertainty
Qualifier
Ratio
ParticleQuantity
ChargeState
Parameter #7
Name
C+6/C+5 Quality Flag
ParameterKey
C6to5_qual
Description
Quality flag for C+6/C+5 Solar Wind charge_state Ratio. 0: value within sensitive range of SWICS 2.0 1: value saturated at lower limit 2: value saturated at upper limit
ValidMin
0
ValidMax
16
FillValue
-1
Support
Parameter #8
Name
O+7/O+6 Ratio
ParameterKey
O7to6
Description
O+7/O+6 Solar Wind charge_state Ratio
Cadence
PT2H
ValidMin
0.0
ValidMax
100.0
FillValue
-1.0E31
Particle
ParticleType
Ion
Qualifier
Ratio
ParticleQuantity
ChargeState
Parameter #9
Name
O+7/O+6 Ratio Err
ParameterKey
O7to6_err
Description
O+7/O+6 Statistical Uncertainty
ValidMin
0.0
ValidMax
100.0
FillValue
-1.0E31
Particle
ParticleType
Ion
Qualifier
Uncertainty
Qualifier
Ratio
ParticleQuantity
ChargeState
Parameter #10
Name
O+7/O+6 Quality Flag
ParameterKey
O7to6_qual
Description
Quality flag for O+7/O+6 Solar Wind charge_state Ratio 0: value within sensitive range of SWICS 2.0 1: value saturated at lower limit 2: value saturated at upper limit
ValidMin
0
ValidMax
16
FillValue
-1
Support
Parameter #11
Name
O+8/O+6 Ratio
ParameterKey
O8to6
Description
O+8/O+6 Solar Wind charge_state Ratio
Cadence
PT2H
ValidMin
0.0
ValidMax
100.0
FillValue
-1.0E31
Particle
ParticleType
Ion
Qualifier
Ratio
ParticleQuantity
ChargeState
Parameter #12
Name
O+8/O+6 Ratio Err
ParameterKey
O8to6_err
Description
O+8/O+6 Statistical Uncertainty
ValidMin
0.0
ValidMax
100.0
FillValue
-1.0E31
Particle
ParticleType
Ion
Qualifier
Uncertainty
Qualifier
Ratio
ParticleQuantity
ChargeState
Parameter #13
Name
O+8/O+6 Quality Flag
ParameterKey
O8to6_qual
Description
Quality flag for O+8/O+6 Solar Wind charge_state Ratio 0: value within sensitive range of SWICS 2.0 1: value saturated at lower limit 2: value saturated at upper limit
ValidMin
0
ValidMax
16
FillValue
-1
Support
Parameter #14
Name
Average Iron charge state
ParameterKey
avqFe
Description
Iron Solar Wind average charge state
Units
ionic charge
ValidMin
0.0
ValidMax
26.0
FillValue
-1e31
Particle
ParticleType
Ion
Qualifier
Average
ParticleQuantity
ChargeState
Parameter #15
Name
Average Iron charge state err
ParameterKey
avqFe_err
Description
Iron average charge state Statistical Uncertainty
Units
ionic charge
ValidMin
0.0
ValidMax
26.0
FillValue
-1e31
Particle
ParticleType
Ion
Qualifier
Uncertainty
Qualifier
Average
ParticleQuantity
ChargeState
Parameter #16
Name
Average Iron charge state quality flag
ParameterKey
avqFe_qual
Description
Quality flag for Iron Solar Wind average charge state 0: value within sensitive range of SWICS 2.0 1: value saturated at lower limit 2: value saturated at upper limit
ValidMin
0
ValidMax
16
FillValue
-1
Support
Parameter #17
Name
Fe/O elemental abundance ratio
ParameterKey
FetoO
Description
Fe/O Solar Wind elemental abundance ratio
Units
ionic charge
ValidMin
0.0
ValidMax
10.0
FillValue
-1e31
Particle
ParticleType
Ion
Qualifier
Ratio
ParticleQuantity
NumberDensity
Parameter #18
Name
Fe/O statistical uncertainty
ParameterKey
FetoO_err
Description
Fe/O statistical uncertainty
ValidMin
0.0
ValidMax
10.0
FillValue
-1e31
Particle
ParticleType
Ion
Qualifier
Uncertainty
Qualifier
Ratio
ParticleQuantity
NumberDensity
Parameter #19
Name
Fe/O quality flag
ParameterKey
FetoO_qual
Description
Quality Flag for Fe/O Solar Wind elemental abundance ratio. 0: value within sensitive range of SWICS 2.0 1: value saturated at lower limit 2: value saturated at upper limit
ValidMin
0
ValidMax
16
FillValue
-1
Support
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