gov.noaa.nodc:GEOSAT-GM-ERM eng utf8 series NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-05-24T17:23:13Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Data Records derived from GEOSAT Geodetic Mission (GM) and Exact Repeat Mission (ERM) data from 30 March 1985 to 31 December 1989 1987-02-26 publication 2023-12-07 revision 1987 creation NOAA National Centers for Environmental Information gov.noaa.nodc:GEOSAT-GM-ERM NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher John Lillibridge NOAA Center for Satellite Applications and Research (STAR) John.Lillibridge@noaa.gov https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information resourceProvider Robert E. Cheney NOAA National Ocean Service (NOS) resourceProvider Nancy S. Doyle NOAA National Ocean Service (NOS) resourceProvider NOAA Center for Satellite Applications and Research (STAR) https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information resourceProvider NOAA National Ocean Service (NOS) resourceProvider US DOC/NOAA/National Ocean Service - Rockville, MD resourceProvider US Navy Naval Oceanographic Office (NAVOCEANO) https://www.metoc.navy.mil/navo/navo.html HTTPS US Navy Naval Oceanographic Office (NAVOCEANO) website Institution web page information resourceProvider US Navy/Office of Naval Research (ONR) resourceProvider NOAA Center for Satellite Applications and Research (STAR) https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information contributor Johns Hopkins University, Applied Physics Laboratory (APL) http://www.jhuapl.edu HTTP Johns Hopkins University, Applied Physics Laboratory (APL) website Institution web page information contributor US Navy contributor US DOC/NOAA/National Ocean Service - Rockville, MD contributor US Navy Naval Oceanographic Office (NAVOCEANO) https://www.metoc.navy.mil/navo/navo.html HTTPS US Navy Naval Oceanographic Office (NAVOCEANO) website Institution web page information contributor US DOC/NOAA/NMFS/Southeast Regional Office/Habitat Conservation Division/Atlantic Branch contributor US Navy/Office of Naval Research (ONR) contributor Lillibridge, John NOAA Center for Satellite Applications and Research (STAR) John.Lillibridge@noaa.gov https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information author Cheney, Robert E. NOAA National Ocean Service (NOS) author Doyle, Nancy S. NOAA National Ocean Service (NOS) author NOAA Center for Satellite Applications and Research https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information author NOAA National Ocean Service author US DOC/NOAA/National Ocean Service - Rockville, MD author US Navy Naval Oceanographic Office https://www.metoc.navy.mil/navo/navo.html HTTPS US Navy Naval Oceanographic Office (NAVOCEANO) website Institution web page information author US Navy/Office of Naval Research author tableDigital This collection contains Sensor Data Records (SDRs), Geodetic Data Records (GDRs), Waveform Data Records (WDRs), and Crossover Difference data Records (XDRs) from the GEOSAT Geodetic Mission (GM) and Exact Repeat Mission (ERM) for the time period of March 30, 1985 to December 31, 1989. Parameters include: time, orbit, latitude/longitude, and sea surface height. Corrections to the data include: sea level, wind and wave data, tides, dry and wet troposphere, ionosphere, height bias, altimeter crossover differences, altimeter sea surface measurement, and spacecraft orientation. These data were submitted by the U.S. Navy via National Ocean Service. This collection also contains complete copies of four NODC Standard Products, including US Navy Geosat altimeter geophysical data records (GDRs) for the Geodetic Mission (4 CD-ROMs), US Navy Geosat wind/wave data (WWDR) from the Geodetic Mission (4 CD-ROMs), US Navy Geosat Enhanced JGM-3 Geophysical Data Records (GDR) from the Geodetic and Exact Repeat Missions (4 CD-ROMs), and US Navy Geosat altimeter Crossover Differences (XDRs) for the Geodetic Mission (8 CD-ROMs). The US Navy Geosat (Geodetic Satellite) radar altimeter mission lasted for nearly 5 years (March 1985 to January 1990) and collected approximately 750 million measurements of sea level, wave height, and wind speed over the global oceans. During the Geodetic Mission (March 1985 to September 1986), the satellite did not repeat its ground track for the duration of the mission. The orbit of the satellite was changed in early October 1986 to begin the Exact Repeat Mission (ERM) which lasted from November 8, 1986 until the satellite quit functioning in January 1990. During the ERM, the satellite repeated its ground track every 17 days. Data were initially processed by the Johns Hopkins University Applied Physics Laboratory in Laurel, MD in coordination with the NOAA/NOS Satellite Altimeter Group. Data products were transferred to the NOAA National Oceanographic Data Center (NODC) for distribution. Data products are archived at the NODC. From March 1985 until January 1990, the U.S. Navy satellite Geosat generated a new dataset with unprecedented spatial and temporal coverage of the global oceans. Designed and built at the Johns Hopkins University Applied Physics Laboratory, Geosat carried a radar altimeter which produced profiles of sea level, wave height, and wind speed along the satellite ground track. Such records have applications in many areas of geodesy, ocean dynamics, and global climate research. Experience with GEOS-3 and Seasat in the 1970s had demonstrated the enormous potential of altimetry, but neither mission provided such complete long-term global coverage. Geosat was launched on March 12, 1985, and altimeter data collection began on March 30. The acronym Geosat was derived from geodetic satellite, because its primary mission was to obtain a high-resolution description of the marine geoid up to latitudes of 72 degrees. This goal was achieved during the first 18 months, known as the Geodetic Mission (GM). During this time the ground track had a near-repeat period of about 23 days (330 revolutions in 23.07 days; average orbital period of 6039.84 sec). The drifting orbit resulted in a dense, global network of sea level profiles separated by about 4 km at the equator. Because of the military significance of this unique set of observations, the GM data were initially classified but in 1995 were released to NOAA in their entirety for public distribution. At the conclusion of the GM on September 30, 1986, the satellite orbit was changed, and the Exact Repeat Mission (ERM) began on November 8, 1986. This produced sea level profiles along tracks that repeated themselves within 1-2 km at intervals of about 17 days (244 revolutions in 17.05 days; average orbital period of 6037.55 sec). The ERM covered 62 complete 17-day cycles before tape recorder failure in October 1989 terminated the global dataset. A limited amount of data was subsequently collected by direct broadcast in the North Atlantic and Gulf of Mexico. By January 1990 continued degradation of the altimeter output power finally ended the Geosat mission. This dataset is available to the public for a wide variety of uses including scientific research and analysis. completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:GEOSAT-GM-ERM Preview graphic PNG 0002202 0002349 0002350 0002351 0002359 0002363 0002364 0002365 0002536 0002537 0002538 0002539 0002540 0002541 0002542 0002543 0002544 0002545 0002546 0002547 0002548 0002549 0002550 0002551 0002552 0002553 0002554 0002555 0002556 0002557 0002558 0002559 0002560 0002561 0002562 0002563 0002564 0002565 0002566 0053056 0053521 0053782 0054150 0054289 0054498 0061150 8700069 8700123 8700124 8700186 8700209 8700243 8700283 8700303 8700339 8700368 8800001 8800041 8800046 8800071 8800083 8800157 8800197 8800235 8800257 8800297 8800328 8900003 8900025 8900058 8900104 8900145 8900163 8900208 8900229 8900253 8900276 9000022 9000068 9000189 9000190 9000199 9000213 9100031 9100053 9100103 9300006 NCEI ACCESSION NUMBER 1993-01-06 publication AIR TEMPERATURE - DRY BULB AIR TEMPERATURE - WET BULB ALTIMETRY - CROSSOVER DIFFERENCES ALTIMETRY - SEA SURFACE HEIGHT ANALYSES - ANNUAL SUMMARIES ANALYSES - MONTHLY SUMMARIES ANALYSES - SEASONAL SUMMARIES SEA HEIGHT SEA LEVEL SEA STATE SEA SURFACE TOPOGRAPHY TIDE HEIGHT TIDE STAGE WAVE DATA WAVE DIRECTION WAVE HEIGHT WAVE HEIGHT - SIGNIFICANT WIND DIRECTION WIND SPEED theme NODC DATA TYPES THESAURUS satellite sensor - altimeter instrument NODC INSTRUMENT TYPES THESAURUS derived products meteorological physical satellite data satellite photography surface measurements time series theme NODC OBSERVATION TYPES THESAURUS GEOSAT platform NODC PLATFORM NAMES THESAURUS Johns Hopkins University, Applied Physics Laboratory NOAA Center for Satellite Applications and Research US DOC/NOAA/National Ocean Service - Rockville, MD US DOC/NOAA/NMFS/Southeast Regional Office/Habitat Conservation Division/Atlantic Branch US Navy US Navy Naval Oceanographic Office US Navy/Office of Naval Research dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Center for Satellite Applications and Research NOAA National Ocean Service US DOC/NOAA/National Ocean Service - Rockville, MD US Navy Naval Oceanographic Office US Navy/Office of Naval Research dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Indian Ocean North Atlantic Ocean Southeast Pacific Ocean (limit-140 W) Southern Ocean World-Wide Distribution place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce DOC/NOAA/NOS > National Ocean Service, NOAA, U.S. Department of Commerce DOD/USNAVY/NAVOCEANO > Naval Oceanographic Office, U.S. Navy, U.S. Department of Defense dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED EARTH SCIENCE > OCEANS > OCEAN WAVES EARTH SCIENCE > OCEANS > OCEAN WAVES > SEA STATE EARTH SCIENCE > OCEANS > OCEAN WAVES > SIGNIFICANT WAVE HEIGHT EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE HEIGHT EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE SPEED/DIRECTION EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA LEVEL EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT > SEA SURFACE HEIGHT ANOMALY (SSHA) EARTH SCIENCE > OCEANS > TIDES EARTH SCIENCE > OCEANS > TIDES > TIDAL HEIGHT theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian ALTIMETERS > ALTIMETERS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian GEOSAT > Geodetic Satellite platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian GEOSAT (ICES code: 3290, 1985-1990) platform ICES/SeaDataNet Ship Codes GEOGRAPHIC REGION > GLOBAL OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > INDIAN OCEAN OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN OCEAN > SOUTHERN OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian accessLevel: public otherRestrictions Cite as: Lillibridge, John; Cheney, Robert E.; Doyle, Nancy S.; NOAA Center for Satellite Applications and Research; NOAA National Ocean Service; US DOC/NOAA/National Ocean Service - Rockville, MD; US Navy Naval Oceanographic Office; US Navy/Office of Naval Research (1987). Data Records derived from GEOSAT Geodetic Mission (GM) and Exact Repeat Mission (ERM) data from 30 March 1985 to 31 December 1989. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/GEOSAT-GM-ERM. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. Lillibridge, John; NOAA Center for Satellite Applications and Research (2005). Documentation for Geosat Geodetic Mission Sensor Data Records (SDR) and Waveform Data Records (WDR) archived at NCEI (NCEI Accession 0002202). https://www.ncei.noaa.gov/archive/accession/0002202. In Lillibridge, John; Cheney, Robert E.; Doyle, Nancy S.; NOAA Center for Satellite Applications and Research; NOAA National Ocean Service; US DOC/NOAA/National Ocean Service - Rockville, MD; US Navy Naval Oceanographic Office; US Navy/Office of Naval Research (1987). Data Records derived from GEOSAT Geodetic Mission (GM) and Exact Repeat Mission (ERM) data from 30 March 1985 to 31 December 1989. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/GEOSAT-GM-ERM. 2005-05-27 publication NOAA National Centers for Environmental Information gov.noaa.nodc:0002202 https://www.ncei.noaa.gov/archive/accession/0002202 HTTPS https://www.ncei.noaa.gov/archive/accession/0002202 Documentation for GEOSAT Mission Data information Lillibridge, John NOAA Center for Satellite Applications and Research (STAR) https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information author NOAA Center for Satellite Applications and Research https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference userGuide Cheney, R. E., Emery, W. J., Haines, B. J., & Wentz, F. (1991). Recent improvements in GEOSAT altimeter data. 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Journal of Geophysical Research: Solid Earth, 91(B9), 9447–9451. https://doi.org/10.1029/jb091ib09p09447 1986-08-10 publication International DOI Foundation (IDF) https://doi.org/10.1029/jb091ib09p09447 https://doi.org/10.1029/jb091ib09p09447 HTTPS https://doi.org/10.1029/jb091ib09p09447 related journal article information Sandwell, David T. author Milbert, Dennis G. author Douglas, Bruce C. author American Geophysical Union (AGU) publisher documentDigital J. Geophys. Res. 91(B9) ISSN 0148-0227, pp. 9447-9451 crossReference Tai, C.-K. (1991). How to Observe the Gyre to Global-Scale Variability in Satellite Altimetry: Signal Attenuation by Orbit Error Removal. Journal of Atmospheric and Oceanic Technology, 8(2), 271–288. https://doi.org/10.1175/1520-0426(1991)008%3C0271:htotgt%3E2.0.co;2 1991-04 publication International DOI Foundation (IDF) https://doi.org/10.1175/1520-0426(1991)008%3C0271:htotgt%3E2.0.co;2 https://doi.org/10.1175/1520-0426(1991)008%3C0271:htotgt%3E2.0.co;2 HTTPS https://doi.org/10.1175/1520-0426(1991)008%3C0271:htotgt%3E2.0.co;2 related journal article information Tai, Chang-Kou author American Meteorological Society publisher documentDigital J. Atmos. Oceanic Technol. 8(2) ISSN 0739-0572, ISSN 1520-0426, pp. 271-288 crossReference Tai, C.-K. (1989). Accuracy Assessment of Widely Used Orbit Error Approximations in Satellite Altimetry. Journal of Atmospheric and Oceanic Technology, 6(1), 147–150. https://doi.org/10.1175/1520-0426(1989)006%3C0147:aaowuo%3E2.0.co;2 1989-02 publication International DOI Foundation (IDF) https://doi.org/10.1175/1520-0426(1989)006%3C0147:aaowuo%3E2.0.co;2 https://doi.org/10.1175/1520-0426(1989)006%3C0147:aaowuo%3E2.0.co;2 HTTPS https://doi.org/10.1175/1520-0426(1989)006%3C0147:aaowuo%3E2.0.co;2 related journal article information Tai, Chang-Kou author American Meteorological Society publisher documentDigital J. Atmos. Oceanic Technol. 6(1) ISSN 0739-0572, ISSN 1520-0426, pp. 147-150 crossReference Wentz, F., 1989: User's manual for the collocated Geosat SSM/I tape, Tech. Rep. 083189, Remote Sensing Systems, Santa Rosa, CA. 1989 publication crossReference eng; USA utf8 environment oceans geoscientificInformation climatologyMeteorologyAtmosphere -180 180 -90 90 1985-03-31 1989-12-31 Documentation for GEOSAT data accessions is maintained in NCEI Accession 0002202. Note: Preliminary metadata for this dataset was extracted from a legacy database maintained by the U.S. National Oceanographic Data Center (NODC). The design of the database did not exactly reflect the FGDC Content Standard for Digital Geospatial Metadata (CSDGM). Principal Investigator (PI) and organization contact information accurately represents all available information from the legacy database at the time that this description was created. However, proper attribution of a PI to a specific institution or the role (submitting or collecting) taken by an institution may not be correct due to inexact mapping between fields in the legacy database and the CSDGM. Due to this uncertainty, the contact information was initially recorded in the Supplemental Information element of the CSDGM description. To develop more accurate metadata, NCEI reviews metadata for all datasets on an ongoing basis. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Originator data format 133783.888 https://www.ncei.noaa.gov/products/geodetic-satellite-exact-repeat-mission HTTPS Web browser Geodetic Satellite Exact Repeat Mission Navigate directly to the URL for a descriptive web page. information https://www.ncei.noaa.gov/archive/accession/GEOSAT-GM-ERM HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/metadata/granule/geoportal/?from=0&size=10&esdsl=%7B%22query%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22query_string%22%3A%7B%22analyze_wildcard%22%3Atrue%2C%22query%22%3A%22fileid%3AGEOSAT-GM-ERM.*%22%7D%7D%5D%7D%7D%7D#searchPanel HTTPS Web browser Granule Search Search for data granules belonging to this collection (a granule is the smallest aggregation of data that can be independently described and retrieved). search series NCEI Accession 9300006 v1.1 was published. 2002-11-19T19:40:22Z NCEI Accession 0002202 v1.1 was published. 2005-05-27T15:13:17Z NCEI Accession 0002349 v1.1 was published. 2005-08-30T19:12:51Z NCEI Accession 0002350 v1.1 was published. 2005-08-30T20:16:33Z NCEI Accession 0002351 v1.1 was published. 2005-08-30T20:34:17Z NCEI Accession 0002359 v1.1 was published. 2005-09-06T19:00:03Z NCEI Accession 0002363 v1.1 was published. 2005-09-07T19:20:40Z NCEI Accession 0002364 v1.1 was published. 2005-09-07T19:41:33Z NCEI Accession 0002365 v1.1 was published. 2005-09-07T19:49:49Z NCEI Accession 0002536 v1.1 was published. 2006-02-09T22:15:44Z NCEI Accession 0002537 v1.1 was published. 2006-02-09T22:16:33Z NCEI Accession 0002538 v1.1 was published. 2006-02-09T22:16:55Z NCEI Accession 0002539 v1.1 was published. 2006-02-09T22:17:00Z NCEI Accession 0002540 v1.1 was published. 2006-02-09T22:17:05Z NCEI Accession 0002541 v1.1 was published. 2006-02-09T22:17:09Z NCEI Accession 0002542 v1.1 was published. 2006-02-09T22:17:13Z NCEI Accession 0002543 v1.1 was published. 2006-02-09T22:17:17Z NCEI Accession 0002544 v1.1 was published. 2006-02-09T22:17:21Z NCEI Accession 0002545 v1.1 was published. 2006-02-09T22:17:25Z NCEI Accession 0002546 v1.1 was published. 2006-02-09T22:17:29Z NCEI Accession 0002547 v1.1 was published. 2006-02-09T22:17:33Z NCEI Accession 0002548 v1.1 was published. 2006-02-09T22:17:36Z NCEI Accession 0002549 v1.1 was published. 2006-02-09T22:17:41Z NCEI Accession 0002550 v1.1 was published. 2006-02-09T22:17:44Z NCEI Accession 0002551 v1.1 was published. 2006-02-09T22:17:48Z NCEI Accession 0002552 v1.1 was published. 2006-02-09T22:18:26Z NCEI Accession 0002553 v1.1 was published. 2006-02-09T22:18:30Z NCEI Accession 0002554 v1.1 was published. 2006-02-09T22:18:35Z NCEI Accession 0002555 v1.1 was published. 2006-02-09T22:18:38Z NCEI Accession 0002556 v1.1 was published. 2006-02-09T22:18:42Z NCEI Accession 0002557 v1.1 was published. 2006-02-09T22:18:46Z NCEI Accession 0002558 v1.1 was published. 2006-02-09T22:18:49Z NCEI Accession 0002559 v1.1 was published. 2006-02-09T22:18:53Z NCEI Accession 0002560 v1.1 was published. 2006-02-09T22:18:57Z NCEI Accession 0002561 v1.1 was published. 2006-02-09T22:19:28Z NCEI Accession 0002562 v1.1 was published. 2006-02-09T22:19:31Z NCEI Accession 0002563 v1.1 was published. 2006-02-09T22:19:47Z NCEI Accession 0002564 v1.1 was published. 2006-02-09T22:20:22Z NCEI Accession 0002565 v1.1 was published. 2006-02-09T22:20:26Z NCEI Accession 0002566 v1.1 was published. 2006-02-09T22:22:02Z NCEI Accession 0053056 v1.1 was published. 2009-04-22T20:01:53Z NCEI Accession 0053056 was revised and v2.2 was published. 2009-04-22T20:01:53Z NCEI Accession 0053521 v1.1 was published. 2009-05-06T19:55:47Z NCEI Accession 0053782 v1.1 was published. 2009-05-15T14:57:57Z NCEI Accession 0054150 v1.1 was published. 2009-05-28T19:42:00Z NCEI Accession 0054289 v1.1 was published. 2009-06-05T18:33:03Z NCEI Accession 0054498 v1.1 was published. 2009-06-11T18:10:56Z NCEI Accession 0061150 v1.1 was published. 2010-01-11T20:14:41Z NCEI Accession 0053056 was revised and v2.3 was published. 2022-01-11T18:52:49Z NCEI Accession 9300006 was revised and v1.2 was published. 2023-02-15T14:51:44Z NCEI Accession 9000022 v0.1 was published. 2023-12-06T16:08:28Z NCEI Accession 9000189 v1.1 was published. 2023-12-06T20:11:39Z NCEI Accession 8700339 v0.1 was published. 2023-12-07T01:21:37Z repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian satellite sensor - altimeter satellite sensor - altimeter satellite sensor - altimeter GEOSAT Updated information from ICES for the platform GEOSAT from the UNITED STATES. Name was edited to match ICES name and additional information was added to the ICES entry for this platform. US Navy GEOdetic SATellite launched 12 March 1985 carrying a radar altimeter. Classified geodetic mission concluded 30 September 1986. GEOSAT orbit adjusted to a 244 pass repeat orbit (repeat same ground track every 17.05 days) for the unclassified Exact Repeat Mission, which ran from 8 Nov 1986 to 30 Jan 1990. Additional information available at http://en.wikipedia.org/wiki/Geosat.