An official website of the United States government
Here's how you know v
Official websites use .gov
A .gov websites belongs to an official government organization in the United States
Secure .gov website use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Data Access
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
CRRES magnetic field orbital data
var authors='Singer, Howard J.';
document.write(authors);
(2025).
CRRES magnetic field orbital data.
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/qzgy-zm18. Accessed on document.write(currentDateStr);.
Note: Proper references, including
Copy BibTeX Citation
or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication.
ResourceID
spase://NASA/NumericalData/CRRES/MAG/PT10H
Description
The magnetic field files (CRnnnn.FPM) contains magnetic field components converted from the CRRES tri-axial fluxgate magnetometer sensor output. This data set, however, is different from the ones on the Aerospace agency tapes. The experimenter magnetic field files (which had neither the full time resolution nor the magnetic field intensity resolution of the original magnetometer outputs) were converted to field components in magnetometer sensor coordinates using the software and final calibration coefficient files provided by the magnetometer PI (Dr. Howard Singer, SEL). The original magnetic field files for orbits 6-350 were not readilly available, but the converted files were, so for the sake of uniformity, it was decided to provide the converted files
instead of the originals. For those who might wish to get back to the original data, the source code (MAGMPC5.FOR) and calibration files (MAGnn.CAL)
which were used to generate the .FPM files are provided. The original CR0237.MAG file is available on CD-8 for comparison with any results of an
inversion program written by the user. A program which dumps the CRnnnn.FPM files is also provided on CD-35 (FPMTEST.EXE). This program prints out the
UT, three magnetic field components in magnetometer coordinates, total B, and the pitch-angle calculated for the MEA (or a user-selected set of direction
cosines). The source code, FPMTEST.FOR, is also provided.
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
View XML |
Edit
Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/CRRES/MAG/PT10H
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
CRRES magnetic field orbital data
DOI
https://doi.org/10.48322/qzgy-zm18
ReleaseDate
2026-06-26 13:16:34Z
RevisionHistory
RevisionEvent
ReleaseDate
2025-05-01 21:14:30Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:01:57Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:29:05Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:16:34Z
Note
Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
Description
The magnetic field files (CRnnnn.FPM) contains magnetic field components converted from the CRRES tri-axial fluxgate magnetometer sensor output. This data set, however, is different from the ones on the Aerospace agency tapes. The experimenter magnetic field files (which had neither the full time resolution nor the magnetic field intensity resolution of the original magnetometer outputs) were converted to field components in magnetometer sensor coordinates using the software and final calibration coefficient files provided by the magnetometer PI (Dr. Howard Singer, SEL). The original magnetic field files for orbits 6-350 were not readilly available, but the converted files were, so for the sake of uniformity, it was decided to provide the converted files
instead of the originals. For those who might wish to get back to the original data, the source code (MAGMPC5.FOR) and calibration files (MAGnn.CAL)
which were used to generate the .FPM files are provided. The original CR0237.MAG file is available on CD-8 for comparison with any results of an
inversion program written by the user. A program which dumps the CRnnnn.FPM files is also provided on CD-35 (FPMTEST.EXE). This program prints out the
UT, three magnetic field components in magnetometer coordinates, total B, and the pitch-angle calculated for the MEA (or a user-selected set of direction
cosines). The source code, FPMTEST.FOR, is also provided.
Acknowledgement
The National Space Science Data Center; Department of Defense-Department of the Air Force (United States); AFRL; Dr. Howard J. Singer; Dr. E. Gary Mullen
PublicationInfo
Authors
Singer, Howard J.
PublicationDate
2025-11-14 16:01:57Z
PublishedBy
Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Howard.J.Singer
InformationURL
Name
CRRES Fluxgate Magnetometer Instrument
URL
https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1990-065A-19
Description
NASA NSSDC CRRES fluxgate magnetometer experiment details
Association
AssociationID
spase://SMWG/Observatory/CRRES
AssociationType
ObservedBy
PriorIDs
spase://VSPO/NumericalData/P_CRRES_HDR_MAG_DATA
spase://VSPO/NumericalData/CRRES/MAG/PT10H
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/crres/magnetic_field/data/
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/crres/magnetic_field/data/
Format
Binary
ProcessingLevel
Calibrated
ProviderResourceName
CRRES MAG Tri-axial fluxgate magnetometer
InstrumentIDs
spase://SMWG/Instrument/CRRES/MAG
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1990-10-11 00:00:00.000Z
StopDate
1991-10-13 00:00:00.000Z
Cadence
PT10H
ObservedRegion
Earth.Magnetosphere.Main
ObservedRegion
Earth.Magnetosphere.RadiationBelt