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/SNOE/UVS/GEO/PT24H NASA NumericalData SNOE Daily Averages of Nitric Oxide (NO) Density in Geographic Bins 2025-12-04T13:31:28Z 2021-03-11T18:39:11Z Only known prior ReleaseDate of the metadata 2025-11-14T16:02:54Z Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB 2025-12-04T13:31:28Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB This level 4 data set from the Student Nitric Oxide Explorer (SNOE) ultraviolet spectrometer (UVS) contains daily averages of nitric oxide (NO) density for the altitudes range 96.6 to 150 km as deduced from the UVS count rates ([0, 1] gamma band; 237 nm). Averaging was done in geographic coordinates in a 38x18 array, using bins of 5 degree latitude and 3.3 km altitude. Please acknowledge the Principal Investigator, Dr. Charles A. Barth, and SPDF. Barth, Charles A. 2025-11-14T16:02:54Z Space Physics Data Facility spase://SMWG/Person/Charles.A.Barth PrincipalInvestigator spase://SMWG/Person/Dieter.K.Bilitza GeneralContact Readme file from SPDF FTP https://spdf.gsfc.nasa.gov/pub/data/snoe/NO_uvs/00readme.txt spase://VSPO/NumericalData/SNOE/UVS/GEO/PT24H 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/snoe/NO_uvs/NO_daily_geo_ascii/ for daily geographic averages via ftp HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/snoe/NO_uvs/NO_daily_geo_ascii/ for daily geographic averages via http Text spase://SMWG/Instrument/SNOE/UVS NeutralGas 1998-03-11T00:00:00 2000-09-30T00:00:00 PT24H Earth.NearSurface.Thermosphere