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/TIMED/GUVI/Thermospheric_O-N2_PS NASA DisplayData TIMED GUVI L3 Thermospheric O/N2 PS Images 2025-12-04T13:28:08Z 2020-07-07T19:48:38Z Only known prior ReleaseDate of the metadata 2025-11-14T16:17:36Z Added PublicationInfo. 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 2025-12-04T13:28:08Z Added MetadataRightsList. Updated to 2.7.1. ZCB Thermospheric O/N2 daily maps of the thermospheric column number density ratio of O and N2 referenced at N2 column number density level of 10E17 cm-2. The GUVI data used here are provided through support from the NASA MOamp;DA program. The GUVI instrument was designed and built by The Aerospace Corporation and The Johns Hopkins University. The Principal Investigator is Dr. Andrew B. Christensen and the Chief Scientist and co-PI is Dr. Larry J. Paxton. See also Data Usage Policy at http://guvitimed.jhuapl.edu/home_guvi-datausage. Christensen, Andrew B.; Paxton, Larry J. 2025-11-14T16:17:36Z Johns Hopkins University Applied Physics Laboratory; Space Physics Data Facility spase://SMWG/Person/Andrew.B.Christensen PrincipalInvestigator spase://SMWG/Person/Larry.J.Paxton CoInvestigator Thermospheric O/N2 Information http://guvitimed.jhuapl.edu/data_on2_info L3 Thermospheric O/N2 (PS) Data Products Availability http://guvitimed.jhuapl.edu/data_status_l3_on2_ps spase://VITMO/DisplayData/TIMED/GUVI/Thermospheric_O-N2_PS spase://VSPO/DisplayData/TIMED/GUVI/Thermospheric_O-N2_PS spase://SMWG/Repository/TIMED/GUVI_POC Online Open GUVI POC L3 Thermospheric O/N2 Image Request http://guvitimed.jhuapl.edu/data_fetch_l3_on2_ps This web page allows the request of PostScript-formatted image files for this product. To request data: select the year and day then press display. GUVI POC L3 Thermospheric O/N2 Gallery http://guvitimed.jhuapl.edu/guvi-galleryl3on2 This web page allows viewing of individual images or a slideshow of a sequence of images. To request data: select the year and day and then click display. GUVI Data Products Access http://guvitimed.jhuapl.edu/data_products This web page provides access to data products as well as to descriptions and availability information. Postscript None NASA, Andrew B. Christensen spase://SMWG/Repository/TIMED/GUVI_POC Online Open GUVI POC L3 Thermospheric O/N2 Image Request http://guvitimed.jhuapl.edu/data_fetch_l3_on2_gif This web page allows the request of PNG-formatted image files for this product. To request data: select the year and day then press display. GUVI POC L3 Thermospheric O/N2 Gallery http://guvitimed.jhuapl.edu/guvi-galleryl3on2 This web page allows viewing of individual images or a slideshow of a sequence of images. To request data: select the year and day and then click display. GUVI Data Products Access http://guvitimed.jhuapl.edu/data_products This web page provides access to data products as well as to descriptions and availability information. PNG None NASA, Andrew B. Christensen Calibrated GUVI Thermospheric O/N2 Summary Images Level 3 spase://SMWG/Instrument/TIMED/GUVI EnergeticParticles 2002-01-07T00:00:00.000Z 2007-11-04T00:00:00.000Z P1D Earth.NearSurface.Thermosphere TIMED GUVI lower thermosphere MLTI Thermospheric O/N2 Data O/N2 ratio The thermospheric column number density ratio of O and N2. unitless Molecule Ratio NumberDensity