2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/Hawkeye/MAG/PT1.9S NASA NumericalData Hawkeye Magnetometer 1.9-s Data HK_H0_MAG 2025-12-04T13:29:19Z 2021-04-27T15:38:11Z Only known prior ReleaseDate of the metadata 2024-01-30T09:57:00.000 removed line feed in Contact, SAB 2025-09-18T11:27:06Z 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 2025-12-04T13:29:19Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB 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. Van Allen, James A. 2025-09-18T11:27:06Z Space Physics Data Facility spase://SMWG/Person/Scott.Boardsen GeneralContact spase://SMWG/Person/James.A.Van.Allen PrincipalInvestigator spase://VSPO/NumericalData/Hawkeye/MAG/PT1.9S spase://SMWG/Repository/NASA/GSFC/SPDF Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/hawkeye/h0/mag/ FTP access to repository of Hawkeye Magnometer data in CDF format at NASA CDAWeb. HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/hawkeye/h0/mag/ In CDF via HTTP from SPDF CDF Please acknowledge data provider at University of Iowa and SPDF when using these data. spase://SMWG/Repository/NASA/GSFC/SPDF Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=HK_H0_MAG&index=sp_phys HK_H0_MAG Repository of Hawkeye data at NASA CDAWeb, accessible via web interface. Name of the data resource: HK_H0_MAG Text spase://SMWG/Repository/NASA/GSFC/SPDF Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi HK_H0_MAG Web Service to this product using the HAPI interface. CSV CALIBRATED spase://SMWG/Instrument/Hawkeye/MAG MagneticField 1974-06-06T00:00:00 1978-04-28T23:59:59 PT1.9S Earth.NearSurface.Ionosphere Earth.Magnetosphere