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STEREO-A In-Situ Measurements of Particles and CME Transients (IMPACT) Fluxgate Magnetometer (MAG) Magnetic Field Vectors, in Radial-Tangential-Normal (RTN) Coordinates, Level Beacon (LB), PT0.125S Data

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

Description

STEREO Ahead reprocessed IMPACT/MAG Beacon magnetic field vector component and vector magnitude data expressed in Heliographic, HG, Radial-Tangential-Normal, RTN, Cartesian coordinates around the 2015 solar conjunction.

  • Version 1: Used internally at UCB and UCLA ONLY, No corrections applied to raw MAG data
  • Version 2: Offset correction applied to MAG data
  • Version 3: Initial algorithm for correcting glitches for the X sensor on STEREO Ahead applied
  • Version 4: Improvement in glitch correction algorithm applied
  • Version 5: Further refinement of the glitch correction for the X sensor on STEREO Ahead, Also, two timing issues resolved:
  • a) applying a 6 ms time shift to account for time lag between IMPACT IDPU and MAG
  • b) fixing an occasional 1 s 'glitch'
  • Version 6: Added FILTER_VALUE variable

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Details

Version:2.3.2

NumericalData

ResourceID
spase://NASA/NumericalData/STEREO-A/IMPACT/MAG/RTN/LevelBeacon/PT0.125S
ResourceHeader
ResourceName
STEREO-A In-Situ Measurements of Particles and CME Transients (IMPACT) Fluxgate Magnetometer (MAG) Magnetic Field Vectors, in Radial-Tangential-Normal (RTN) Coordinates, Level Beacon (LB), PT0.125S Data
ReleaseDate
2021-04-27 15:38:11Z
Description

STEREO Ahead reprocessed IMPACT/MAG Beacon magnetic field vector component and vector magnitude data expressed in Heliographic, HG, Radial-Tangential-Normal, RTN, Cartesian coordinates around the 2015 solar conjunction.

  • Version 1: Used internally at UCB and UCLA ONLY, No corrections applied to raw MAG data
  • Version 2: Offset correction applied to MAG data
  • Version 3: Initial algorithm for correcting glitches for the X sensor on STEREO Ahead applied
  • Version 4: Improvement in glitch correction algorithm applied
  • Version 5: Further refinement of the glitch correction for the X sensor on STEREO Ahead, Also, two timing issues resolved:
  • a) applying a 6 ms time shift to account for time lag between IMPACT IDPU and MAG
  • b) fixing an occasional 1 s 'glitch'
  • Version 6: Added FILTER_VALUE variable
Acknowledgement
Please acknowledge the Principal Investigator J.G. Luhmann for use of the Data
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/Janet.G.Luhmann
2.MetadataContactspase://SMWG/Person/Robert.M.Candey
3.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
STEREO IMPACT Experiment web site, UCB
URL
Description

STEREO, In-situ Measurements of Particles and CME Transients, IMPACT, experiment and data descriptions, web site hosted by UC Berkeley

PriorIDs
spase://VSPO/NumericalData/STEREO-A/IMPACT/MAG/RTN/LevelBeacon/PT0.125S
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description

Access to Data in CDF Format via ftp from SPDF

AccessURL
Name
HTTPS from SPDF
URL
Description

Access to Data in CDF Format via http from SPDF

AccessURL
Name
CDAWeb
URL
ProductKey
STA_LB_MAG_RTN
Description

Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb

Format
CDF
Encoding
None
Acknowledgement
Please acknowledge the Principal Investigator J.G. Luhmann. Please acknowledge the Data Providers and CDAWeb when using these Data.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
Style
HAPI
ProductKey
STA_LB_MAG_RTN
Description

Web Service to this product using the HAPI interface.

Format
CSV
Acknowledgement
Please acknowledge the Principal Investigator J.G. Luhmann. Please acknowledge the Data Providers and CDAWeb when using these Data.
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
2014-08-01 00:00:00.000
StopDate
2015-11-30 23:59:59.999
Cadence
PT0.125S
ObservedRegion
Heliosphere.Remote1AU
Parameter #1
Name
Epoch Time, since 0 A.D.
ParameterKey
Epoch
Description

Epoch Time, Milliseconds since 0 A.D.

Caveats
Interval-centered time tag
Cadence
PT0.125S
Units
ms
UnitsConversion
1e-3>s
RenderingHints
AxisLabel
Epoch
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
IMPACT/MAG Magnetic Field Vector in Heliographic, RTN
Set
Time series defined by using: EPOCH
ParameterKey
BFIELD
Description

IMPACT/MAG Magnetic Field Vector and Vector Magnitude in Heliographic, HG, Radial-Tangential-Normal, RTN, Coordinates

Cadence
PT0.125S
Units
nT
UnitsConversion
1e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
ValueFormat
E13.6
ScaleType
LinearScale
Structure
Size
4
Element
Name
BR
Index
1
RenderingHints
AxisLabel
BR
Element
Name
BT
Index
2
RenderingHints
AxisLabel
BT
Element
Name
BN
Index
3
RenderingHints
AxisLabel
BN
Element
Name
BTotal
Index
4
RenderingHints
AxisLabel
BTotal
ValidMin
-10000.0
ValidMax
1.0e+06
FillValue
-1.0e+31
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #3
Name
Flag Values, IMPACT/MAG Magnetic Field Vector in Heliographic, RTN
Set
Time series defined by using: EPOCH
ParameterKey
MAGFLAGUC
Description

Bitwise stored Flag Values, IMPACT/MAG Magnetic Field Vector and Vector Magnitude in Heliographic, HG, Radial-Tangential-Normal, RTN, Coordinates

Caveats
* 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 calibration: 0=OFF, 1=ON * bit 14 In flight calibration: 0=OFF, 1=ON * bit 15 Range: 0=Low fields, High sensitivity, 1=High fields, Low sensitivity * bit 16 Calibration: 0=Old cal, 1=New cal * bit 17 6 ms added to sync correctly with IDPU * bit 18 62.5 ms to 8 hz data, no longer used * bit 19 Timestamp resync: that is, the time stamp has been changed, i.e. the 1 s glitch * bit 20 Data rate resync: timestamps were calculated with a different Δt for mixed frequency data or the data rate was not synced properly so the records timestamps were calculated incorrectly * bit 21 Derived from 32 hz MAG data
Cadence
PT0.125S
RenderingHints
AxisLabel
MAGFLAGUC
ValueFormat
I8
ScaleType
LinearScale
ValidMin
0
ValidMax
4294967295
FillValue
4294967295
Support
SupportQuantity
Other
Parameter #4
Name
Filter Value, Upper Limit for Valid Magnetic Field Magnitude
ParameterKey
FILTER_VALUE
Description

Filter Value corresponds to the Upper Limit for the expected Valid Range of Total Magnetic Field Values, when the Field is greater than the Filter Value, the Data is replaced with Fill Values as such Data are likely Spurious and Non-Physical

Cadence
PT0.125S
Units
nT
UnitsConversion
1e-9>T
RenderingHints
AxisLabel
filter
ValueFormat
E12.2
ScaleType
LinearScale
ValidMin
0.0
ValidMax
100000.0
FillValue
-1.0e+31
Support
Qualifier
Maximum
SupportQuantity
Other