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Helios 1 Magnetic Field Spectral Density, offline at NSSDC

(2025). Helios 1 Magnetic Field Spectral Density, offline at NSSDC [Data set]. Space Physics Data Facility.

ResourceID
spase://NASA/NumericalData/Helios1/E4/PT8S

Description

This data set contains 8-sec averaged and peak spectral densities of magnetic field component variations in 8 spectral bands with center frequencies logarithmically equispaced between 6.8 Hz and 1470 Hz. Data records also contain time, spacecraft position, spacecraft-sun-Earth angle, spin vector direction, data quality flags, etc.

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Details

Version:2.7.1

MetadataRightsList

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 SPASE metadata descriptions

Version:2.7.1

NumericalData

ResourceID
spase://NASA/NumericalData/Helios1/E4/PT8S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Helios 1 Magnetic Field Spectral Density, offline at NSSDC
ReleaseDate
2025-12-04 13:29:19Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-03-11 18:39:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:02:21Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:29:19Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description

This data set contains 8-sec averaged and peak spectral densities of magnetic field component variations in 8 spectral bands with center frequencies logarithmically equispaced between 6.8 Hz and 1470 Hz. Data records also contain time, spacecraft position, spacecraft-sun-Earth angle, spin vector direction, data quality flags, etc.

Acknowledgement
Please acknowledge the PI, Dr. Fritz Neubauer, and NSSDC.
PublicationInfo
Authors
Neubauer, Fritz M.
PublicationDate
2025-11-14 16:02:21Z
PublishedBy
Space Physics Data Facility
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Fritz.M.Neubauer
InformationURL
Name
FTPS from SPDF (not with most browsers)
URL
https://spdf.gsfc.nasa.gov/pub/documents/old/documentation_from_nssdc/dataset_catalogs/DSC_0506.pdf
PriorIDs
spase://VSPO/NumericalData/SPHE_00177
spase://VSPO/NumericalData/Helios1/E4/PT8S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Offline
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
NSSDC
URL
https://nssdc.gsfc.nasa.gov/nssdc/obtaining_data.html
Format
Binary
DataExtent
Quantity
600
Units
MB
ProcessingLevel
Uncalibrated
InstrumentIDs
spase://SMWG/Instrument/Helios1/E4
MeasurementType
MagneticField
MeasurementType
Spectrum
TemporalDescription
TimeSpan
StartDate
1974-12-10 00:00:00
StopDate
1975-09-20 00:00:00
Cadence
PT8S
ObservedRegion
Heliosphere.Inner
Parameter #1
Name
Magnetic field spectral density
Description

Eight spectral densities for each of two field components (the spin-aligned component and one of the normal-to-spin-vector components) for either mean values or peak values (determined by flag set elsewhere in data record).

Caveats
Data records actually contain sensor output voltages and conversion factors for transforming to spectral densities.
Cadence
PT8S
Units
Volts
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
2 8
Description

spectral densities for 8 frequency channels, for 2 magnetic field components

Field
FieldQuantity
Magnetic