Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • GEOSAT Follow-On (GFO) Geophysical Data Record, Sensor Data Records, Operational Orbit Determination, Housekeeping Telemetry, Calibration and Waveform Data, and Precise Orbit Ephemerides from 1998-02-10 to 2008-10-22

    Metadata Updated: May 19, 2023

    This collection includes the Geophysical Data Record and other supporting data from the the US Navy GEOSAT Follow-On (GFO) operational radar altimeter satellite program.

    NOAA worked together with the Naval Oceanographic Office to process the altimeter data and provides the NOAA version of the Geophysical Data Record (GDR) to the scientific research community. The GDR is generated from GFO Sensor Data Records (SDRs), precise laser orbit ephemerides (POE) provided by NASA Goddard Space Flight Center and Raytheon ITSS, environmental corrections, and ancillary geophysical variables. POE are produced at NASA Goddard Space Flight Center (GSFC) within 3-4 weeks. They have an expected radial accuracy of 5 cm RMS (Root Mean Squared) over the six day arc. The Sensor Data Record (SDR) provides time tagged altimeter and radiometer data. GFO Operational Orbit Determination Data (OODD) was generated by the United States Naval Satellite Operations Center (NAVSOC). Housekeeping telemetry, radiometer and altimeter calibration and full waveform data (when available) for the altimeter calibration are also available.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date 2023-01-06T17:45:58Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date May 19, 2023
    Reference Date(s) February 26, 2012 (publication), October 1, 2012 (revision)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Series
    Metadata Date 2023-01-06T17:45:58Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date May 19, 2023
    Reference Date(s) February 26, 2012 (publication), October 1, 2012 (revision)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:GEOSAT-GFO
    Access Constraints Cite as: Lillibridge, John; NOAA Center for Satellite Applications and Research (2012). GEOSAT Follow-On (GFO) Geophysical Data Record, Sensor Data Records, Operational Orbit Determination, Housekeeping Telemetry, Calibration and Waveform Data, and Precise Orbit Ephemerides from 1998-02-10 to 2008-10-22. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/GEOSAT-GFO. Accessed [date]., 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.
    Bbox East Long 180
    Bbox North Lat 72
    Bbox South Lat -72
    Bbox West Long -180
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:GEOSAT-GFO
    Graphic Preview Type PNG
    Harvest Object Id 9c2d2f56-8916-42b7-afbb-f99b455383e5
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -72.0], [180.0, -72.0], [180.0, 72.0], [-180.0, 72.0], [-180.0, -72.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1998-02-10
    Temporal Extent End 2008-10-22

    Didn't find what you're looking for? Suggest a dataset here.