2.4.1 spase://GBO/NumericalData/McMAC/Americus/Magnetometer/PT0.5S McMAC Americus (AMER) Ground Magnetometer Data 2022-07-25T12:34:56.789 2019-05-05T12:34:56 Only known prior ReleaseDate of the metadata 2022-07-25T12:34:56.789 Updated one InformationURL URL and one AccessURL URL by JMW 2022-06-02, metadata updated to SPASE 2.4.1, reviewed by LFB 20220724 Data from McMAC Americus (AMER) Ground Magnetometer, Orientation: HEZ, Instrument: Fluxgate magnetometer NSF Mid-continent Magnetoseismic Chain (McMAC) spase://SMWG/Person/Peter.J.Chi PrincipalInvestigator spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact http://themis.ssl.berkeley.edu/gmag/gmag_list.php?selyear=4000&selmonth=13&smap=on&sinfo=on&saelist=on&ae=on Mid-continent Magnetoseismic Chain (McMAC) web site spase://VMO/NumericalData/McMAC/Americus/Magnetometer/PT0.5S spase://SMWG/Repository/McMAC Open http://themis-data.igpp.ucla.edu/thg/l2/mag/ The folder contains the data files in the compressed ASCII format. Text NSF Mid-continent Magnetoseismic Chain (McMAC) Calibrated spase://SMWG/Instrument/McMAC/Americus/Magnetometer MagneticField 2006-03-29T00:00:00 2008-03-11T23:59:59 PT0.5S Earth.Magnetosphere Earth.NearSurface.Ionosphere Magnetic field vector nT Cartesian LGM Vector Magnetic