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STEREO-A In-situ Measurements of Particles And CME Transients (IMPACT) Magnetic Field Vectors and Ancillary Data

ResourceID
spase://NASA/NumericalData/STEREO-A/IMPACT/MAG/L1/PT0.125S

Description

This data product contains Level 1 0.125-s values of solar wind magnetic field data taken by the IMPACT/Magnetometer on STEREO-A. The interface at UCB provides access to CDF-formatted files of magnetic field data in RTN coordinates. The interface at UCLA allows selection of STEREO A or STEREO B data and of vector quantities in RTN or spacecraft coordinates. It also allows selection of either of two parameter sets: [Bx, By, Bz, B ] or [RBx, RBy, RBz, B , cone and clock angles]. Further, this interface enables easy migration between plot vs. ASCII data presentation options and among the three available resolutions (1, 8, 32 Hz). The parameter level information given below is specific to tyhe CDF version of the data at UCB.

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Details

Version:2.3.2

NumericalData

ResourceID
spase://NASA/NumericalData/STEREO-A/IMPACT/MAG/L1/PT0.125S
ResourceHeader
ResourceName
STEREO-A In-situ Measurements of Particles And CME Transients (IMPACT) Magnetic Field Vectors and Ancillary Data
AlternateName
STEREO-A IMPACT/MAG Level 1 Data
ReleaseDate
2021-04-27 15:38:11Z
Description

This data product contains Level 1 0.125-s values of solar wind magnetic field data taken by the IMPACT/Magnetometer on STEREO-A. The interface at UCB provides access to CDF-formatted files of magnetic field data in RTN coordinates. The interface at UCLA allows selection of STEREO A or STEREO B data and of vector quantities in RTN or spacecraft coordinates. It also allows selection of either of two parameter sets: [Bx, By, Bz, B ] or [RBx, RBy, RBz, B , cone and clock angles]. Further, this interface enables easy migration between plot vs. ASCII data presentation options and among the three available resolutions (1, 8, 32 Hz). The parameter level information given below is specific to tyhe CDF version of the data at UCB.

Acknowledgement
The STEREO IMPACT/MAG Team
Contacts
RolePerson
1.DataProducerspase://SMWG/Person/Peter.Schroeder
2.PrincipalInvestigatorspase://SMWG/Person/Janet.G.Luhmann
InformationURL
Name
STEREO IMPACT Mission Site
URL
Description

The web site provides detailed descriptions of the STEREO IMPACT MAG instrument as well as associated data sets.

PriorIDs
spase://VHO/NumericalData/STEREO-A/IMPACT/MAG/L1_PT0.125S
spase://VSPO/NumericalData/STEREO-A/IMPACT/MAG/PT1S
spase://VSPO/NumericalData/STEREO-A/IMPACT/MAG/L1/PT0.125S
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
Download of STEREO-A IMPACT/MAG Level 1 data
URL
Description

A web site hosting the STEREO-A IMPACT/MAG Level 1 data

Format
CDF
Encoding
None
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description

FTP repository of Level1 magnetic field vectors form the IMPACT/MAG instrument in CDF format at CDAWeb

AccessURL
Name
HTTPS from SPDF
URL
Description

In CDF via HTTP from SPDF

Format
CDF
Acknowledgement
Please acknowledge the Principal Investigator Janet Luhmann and the CDAWeb team at GSFC/SPDF.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb
URL
ProductKey
STA_L1_MAG_RTN
Description

Level 1 magnetic field vectors data from the IMPACT/MAG instrument on the STEREO Behind spacecraft with subset, plot, list from CDAWeb

Format
Text
Acknowledgement
Please acknowledge the Principal Investigator Janet Luhmann and the CDAWeb team at GSFC/SPDF.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
Style
HAPI
ProductKey
STA_L1_MAG_RTN
Description

Web Service to this product using the HAPI interface.

Format
CSV
Acknowledgement
Please acknowledge the Principal Investigator Janet Luhmann and the CDAWeb team at GSFC/SPDF.
ProviderResourceName
STEREO-A IMPACT/MAG Level 1 Data
ProviderProcessingLevel
1
ProviderVersion
3
InstrumentIDs
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
2006-11-08 00:00:00Z
RelativeStopDate
-P01M
Cadence
PT0.125S
ObservedRegion
Heliosphere.Remote1AU
Caveats
Current version of the data include very fast (subsecond) glitches in the magnetometer's X sensor. Magnitude of these glitches are approximately 0.5 nT and occur at varying frequencies throughout the mission.
Parameter #1
Name
Time
ParameterKey
Epoch
Description

Number of milliseconds since 0 AD

Caveats
Interval-centered time tag
Units
ms
UnitsConversion
1.0e-3>s
ValidMin
01-Jan-1990 00:00:00.000
ValidMax
31-Dec-2020 00:00:00.000
FillValue
31-Dec-9999 23:59:59.999
Support
SupportQuantity
Temporal
Parameter #2
Name
Magnetic Field Vector in RTN Coordinates
ParameterKey
BFIELD
Description

Magnetic field vectors as measured by the IMPACT/MAG instrument in RTN coordinate system.

Units
nT
UnitsConversion
1.0e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
Structure
Size
4
Element
Name
Bx
Qualifier
Component.I
Index
1
ValidMin
-Infinity
ValidMax
Infinity
FillValue
-1.0E31
Element
Name
By
Qualifier
Component.J
Index
2
ValidMin
-Infinity
ValidMax
Infinity
FillValue
-1.0E31
Element
Name
Bz
Qualifier
Component.K
Index
3
ValidMin
-Infinity
ValidMax
Infinity
FillValue
-1.0E31
Element
Name
B Magnitude
Index
4
ValidMin
-Infinity
ValidMax
Infinity
FillValue
-1.0E31
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #3
Name
MAG Flag
Description

Error Flag - bit 0:3 Mag Error counter bit 4:7 Mag Command counter bit 8 spare bit 9 First bit 10 Time bit 11 Interface Parity Error (0=OK, 1=Fault) bit 12 Interface Timeout Error (0=OK, 1=Fault) bit 13 ADC Cal (0=OFF, 1=ON) bit 14 In Flight Cal (0=OFF, 1=ON) bit 15 Range (0=low fields, high sensitivity, 1=high fields, low sen bit 16 Calibration (0=old cal, 1=new cal) bit 17 STEREO STEPPING For X-axis bit 18:31 spare

ValidMin
0
ValidMax
4294967295
Support
SupportQuantity
Other