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Data Access

Hawkeye Magnetometer 1.9-s Data

(2025). Hawkeye Magnetometer 1.9-s Data. [Data set]. Space Physics Data Facility.

ResourceID
spase://NASA/NumericalData/Hawkeye/MAG/PT1.9S

Description
This level 0 data set contains investigator-provided magnetic field data at 1.9-second resolution from the Hawkeye magnetometer instrument. The data set contains despun data including the following parameters: scalar magnetic field strength; vector magnetic field in Cartesian GSM and SM coordinates; spacecraft radial distance from the center of Earth; spacecraft position in Cartesian GSM and SM coordinates; despin method indicator (0: not despun; 1: optical aspect; 2: sun pulse; 3: array voltage; 4: mag field model; 4/5: solar array method); and an estimate of the angular uncertainty in magnetic field direction (set to zero for despin = 1 or 2). For a reference paper on despinning technique, see Boardsen, S. and R.L. Kessel, Spin Index Determination of the Hawkeye Spacecraft, J. Spacecraft and Rockets, 39, 780-787, 2002.

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.

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Details

Version:2.7.1

NumericalData

ResourceID
spase://NASA/NumericalData/Hawkeye/MAG/PT1.9S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Hawkeye Magnetometer 1.9-s Data
AlternateName
HK_H0_MAG
ReleaseDate
2026-07-21 12:05:00Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2024-01-30 09:57:00.000Z
Note
removed line feed in Contact, SAB
RevisionEvent
ReleaseDate
2025-09-18 11:27:06Z
Note
Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:29:19Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:17:04Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s), TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:05:00Z
Note
Added HelioData InformationURL. JWL
Description
This level 0 data set contains investigator-provided magnetic field data at 1.9-second resolution from the Hawkeye magnetometer instrument. The data set contains despun data including the following parameters: scalar magnetic field strength; vector magnetic field in Cartesian GSM and SM coordinates; spacecraft radial distance from the center of Earth; spacecraft position in Cartesian GSM and SM coordinates; despin method indicator (0: not despun; 1: optical aspect; 2: sun pulse; 3: array voltage; 4: mag field model; 4/5: solar array method); and an estimate of the angular uncertainty in magnetic field direction (set to zero for despin = 1 or 2). For a reference paper on despinning technique, see Boardsen, S. and R.L. Kessel, Spin Index Determination of the Hawkeye Spacecraft, J. Spacecraft and Rockets, 39, 780-787, 2002.
PublicationInfo
Authors
Van Allen, James A.
PublicationDate
2025-09-18 11:27:06Z
PublishedBy
Space Physics Data Facility
Contacts
Role Person StartDate StopDate Note
1. GeneralContact spase://SMWG/Person/Scott.Boardsen
2. PrincipalInvestigator spase://SMWG/Person/James.A.Van.Allen

InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/Hawkeye_MAG_PT1.9S
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
PriorIDs
spase://VSPO/NumericalData/Hawkeye/MAG/PT1.9S
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/hawkeye/h0/mag/
Description
FTP access to repository of Hawkeye Magnometer data in CDF format at NASA CDAWeb.
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/hawkeye/h0/mag/
Description
In CDF via HTTP from SPDF
Format
CDF
Acknowledgement
Please acknowledge data provider at University of Iowa and SPDF when using these data.
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
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=HK_H0_MAG&index=sp_phys
ProductKey
HK_H0_MAG
Description
Repository of Hawkeye data at NASA CDAWeb, accessible via web interface. Name of the data resource: HK_H0_MAG
Format
Text
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/hawkeye/h0/mag/$Y
AccessFilenameTemplate
hk_h0_mag_$Y$m$d_$v.cdf
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/HK_H0_MAG/clientLibraryExample/
Style
WebService
ProductKey
HK_H0_MAG
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
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
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
HK_H0_MAG
Description
Web Service to this product using the HAPI interface.
Format
CSV
ProviderProcessingLevel
CALIBRATED
InstrumentIDs
spase://SMWG/Instrument/Hawkeye/MAG
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1974-06-06 00:00:00Z
StopDate
1978-04-28 23:59:59Z
Cadence
PT1.9S
ObservedRegion
Earth.NearSurface.Ionosphere
ObservedRegion
Earth.Magnetosphere
NASA Insignia
Contact SPDF: NASA-SPDF Feedback/Support
Responsible NASA Official: Lan Jian
Site Editor: Rita Johnson
SPDF ROR ID
SPDF re3data ID
About NASA
Accessibility
FOIA
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Privacy Policy
Vulnerability Disclosure Policy
Last Updated: 2026-07-21