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

ResourceID
spase://NOAA/NumericalData/GOES/7/MFM/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:2.3.0

NumericalData

ResourceID
spase://NOAA/NumericalData/GOES/7/MFM/PT3S
ResourceHeader
ResourceName
GOES 7 Magnetometer Field Monitor (MFM), Spacecraft Coordinates, 3 s Data
AlternateName
GOES 7 MFM data
ReleaseDate
2019-05-05 12:34:56Z
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.

InformationURL
Name
GOES 7 Space Environment Monitor
URL
Description

Additional GOES Magnetic Field Monitor information.

InformationURL
Name
GOES 7 Biaxial Fluxgate Magnetometer Example ASCII file
URL
Description

Additional GOES 7 Magnetic Field Monitor header information.

PriorIDs
spase://VMO/NumericalData/GOES/7/MAG/PT3S
spase://VSPO/NumericalData/GOES/7/MFM/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
Text.ASCII
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
Seconds of the Month
ParameterKey
Time
Description

Time is given as year-month-day hour:minute:seconds (i.e., YYYY-MM-DD HH:MM:SS). The year and month values are derived from the file name.

Support
SupportQuantity
Temporal
Parameter #2
Name
Unknown Flag
ParameterKey
Unknown Flag
Description

Contains '\N'.

Cadence
PT3S
Support
SupportQuantity
Other
Parameter #3
Name
Flag Word
ParameterKey
Flag Word
Description

The Flag Word contains packed information about the data such as the instrument command state, identification of bad data, correction of data, and archive version number. For more information go to https://satdat.ngdc.noaa.gov/sem/goes/software/mag.txt.

Support
SupportQuantity
Other
Parameter #4
Name
GOES 7 Magnetic Field Monitor Magnetic Field Vector 3 s Time Resolution Data in Spacecraft Coordinates
ParameterKey
Magnetic Field Vectors
Description

Magnetic field vector for GOES 7 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 eastward for GOES 7.

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 eastward for GOES 7.

Element
Name
HP
Qualifier
Component.I
Index
1
ParameterKey
MAGNETIC "NORTHWARD" COMPONENT
Units
nT
UnitsConversion
0.1>nT
FillValue
32711
Element
Name
HE
Qualifier
Component.J
Index
2
ParameterKey
MAGNETIC "EARTHWARD" COMPONENT
Units
nT
UnitsConversion
0.1>nT
FillValue
32711
Element
Name
HN
Qualifier
Component.K
Index
3
ParameterKey
MAGNETIC "EASTWARD" COMPONENT
Units
nT
UnitsConversion
0.1>nT
FillValue
32711
Field
Qualifier
Vector
FieldQuantity
Magnetic