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GOES 7 Magnetometer Field Monitor (MFM), Spacecraft Coordinates, 3 s Data

ResourceID
spase://NOAA/NumericalData/GOES/7/MAG/PT3S

Description

The spinning twin fluxgate magnetometer, located at a few meters away from the spacecraft was designed to provide the orthogonal components of the magnetic field: Hp was parallel to the spin axis that was held nearly parallel to the rotation axis of the Earth, He was directed toward Earth center, and Hn pointed eastward. The magnetometer had a range of ±400 nT (without saturation) and a resolution of 0.1 nT over a range of ±50 nT. The sensitivity of the magnetometer was about 0.2 nT. The instrument and its electronics were carried on board GOES 4, GOES 5, GOES 6, and GOES 7, without significant changes. Data during the first 3 months of 1986 has poor quality Hp component. The experiment became inoperational in February, 1987.

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Details

Version:2.6.0

NumericalData

ResourceID
spase://NOAA/NumericalData/GOES/7/MAG/PT3S
ResourceHeader
ResourceName
GOES 7 Magnetometer Field Monitor (MFM), Spacecraft Coordinates, 3 s Data
AlternateName
GOES 7 MFM data
ReleaseDate
2023-11-17 10:46:37Z
RevisionHistory
RevisionEvent
ReleaseDate
2023-11-17 10:46:37Z
Note
Removed bad InformationURLs. Updated AccessURL. Update Format of the data. Updated Parameters.
Description

The spinning twin fluxgate magnetometer, located at a few meters away from the spacecraft was designed to provide the orthogonal components of the magnetic field: Hp was parallel to the spin axis that was held nearly parallel to the rotation axis of the Earth, He was directed toward Earth center, and Hn pointed eastward. The magnetometer had a range of ±400 nT (without saturation) and a resolution of 0.1 nT over a range of ±50 nT. The sensitivity of the magnetometer was about 0.2 nT. The instrument and its electronics were carried on board GOES 4, GOES 5, GOES 6, and GOES 7, without significant changes. Data during the first 3 months of 1986 has poor quality Hp component. The experiment became inoperational in February, 1987.

Acknowledgement
NASA, N0AA, Harold Leinbach, Ernest Hildner, Ronald D. Zwickl, Howard J. Singer
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Harold.Leinbach
2.ArchiveSpecialistspase://SMWG/Person/Ernest.Hildner
3.TeamLeaderspase://SMWG/Person/Ronald.D.Zwickl
4.PrincipalInvestigatorspase://SMWG/Person/Howard.J.Singer
5.MetadataContactspase://SMWG/Person/James.M.Weygand
InformationURL
Name
GOES 7 Magnetic Field Monitor
URL
Description

Introduction to the GOES 7 Biaxial Fluxgate Magnetometer.

PriorIDs
spase://VMO/NumericalData/GOES/7/MAG/PT3S
spase://VSPO/NumericalData/GOES/7/MAG/PT3S
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
Direct access to GOES 7 Biaxial Fluxgate Magnetometer (MFM) Magnetic Field Data
URL
Description

Direct link to the GOES 7 Magnetic Field Monitor data in CSV (text ascii) format as well as the magnetometer data from other GOES spacecraft. The data are sorted by year. The file names indicates the data type, spacecraft number, year, month, and resolution. For example, M0137607.FIT indicates magnetometer data (M) for spacecraft 1 (01) at 3 s time resolution (3) from July 1976 (7607). Note that spacecraft IDs 91 and 92 refer to SMS satellites, not GOES.

Format
CSV
Encoding
None
Acknowledgement
NASA, Ronald D. Zwickl
ProcessingLevel
Calibrated
ProviderResourceName
NOAA GOES 7 Magnetic Field Monitor
ProviderProcessingLevel
Level-2
InstrumentIDs
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1987-03-01 00:00:00
StopDate
1996-08-31 00:00:00
Note
Time format in data files is year-month-day hour:minute:seconds. The year and month are derived from the file name.
Cadence
PT3S
Caveats
Flags=32711
Keywords
3 s
geosynchronous
GOES
magnetic field
magnetometer
Magnetic Field Monitor
Parameter #1
Name
Time
ParameterKey
time_tag
Description

Time is given as hour:minute (i.e., HH:MM.M). The year and month values can also be derived from the file name.

Cadence
PT3S
Support
SupportQuantity
Temporal
Parameter #2
Name
Unknown Flag
ParameterKey
flagword
Description

Packed-binary flagword containing status information for each full-resolution measurement.

Cadence
PT3S
ValidMin
0
ValidMax
100000
FillValue
-99999
Support
SupportQuantity
Other
Parameter #3
Name
GOES 1 MFM Magnetic Field Vector 3 s Time Resolution Data in Spacecraft Coordinates
ParameterKey
Magnetic Field Vectors
Description

Magnetic field vector for GOES 1 in spacecraft coordinates in units of 0.1 nT. The values must be divided by a factor of 10 to nT. HP is parallel to the satellite spin axis, which is itself: perpendicular to the orbital plane of the spacecraft. HE lies parallel: to the satellite-earth center line and points earthward. HN is: perpendicular to both HP and HE, and points westward for GOES 1.

Cadence
PT3S
Units
nT
UnitsConversion
0.1>nT
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
Structure
Size
3
Description

HP is parallel to the satellite spin axis, which is itself: perpendicular to the orbital plane of the spacecraft. HE lies parallel: to the satellite-earth center line and points earthward. HN is: perpendicular to both HP and HE, and points westward for GOES 1.

Element
Name
Hp flux (Northward)
Qualifier
Component.I
Index
1
ParameterKey
hp
Units
nT
UnitsConversion
0.1>nT
ValidMin
-200
ValidMax
+200
FillValue
-99999
Element
Name
He flux (Earthward)
Qualifier
Component.J
Index
2
ParameterKey
he
Units
nT
UnitsConversion
0.1>nT
ValidMin
-200
ValidMax
+200
FillValue
-99999
Element
Name
Hn flux (East)
Qualifier
Component.K
Index
3
ParameterKey
hn
Units
nT
UnitsConversion
0.1>nT
ValidMin
-200
ValidMax
+200
FillValue
-99999
Field
Qualifier
Vector
FieldQuantity
Magnetic