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/DisplayData/ACE/MAG/27-Day NASA DisplayData ACE 27-day Survey Plots 2025-12-04T13:27:54Z 2020-07-07T19:48:33Z Only known prior ReleaseDate of the metadata 2025-12-04T13:27:54Z Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB 27-day gif_walk plots, selected ACE mag field and plasma data spase://SMWG/Person/Charles.W.Smith GeneralContact spase://SMWG/Person/Ruth.Skoug GeneralContact spase://VSPO/DisplayData/P_ACE_HDR_GWS_27_DAY spase://VSPO/DisplayData/ACE/MAG/27-Day 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 Polar-Wind-Geotail 'gif-walk' site https://cdaweb.gsfc.nasa.gov/cgi-bin/gif_walk?plot_type=ace_kp_plots_27_day GIF CALIBRATED spase://SMWG/Instrument/ACE/MAG spase://SMWG/Instrument/ACE/SWEPAM MagneticField ThermalPlasma 1997-08-25T00:00:00 -P1M Data are current to within about a month. PT3600S Heliosphere.NearEarth