header:
  dimensions:
    num_records: 0
  global_attributes:
    acknowledgement: GRACE-FO is a joint mission of the US National Aeronautics and Space Administration and the German Research Center for Geosciences.  Use the digital object identifier provided in the id attribute when citing this data.  See https://podaac.jpl.nasa.gov/CitingPODAAC
    conventions: CF-1.6, ACDD-1.3, ISO 8601
    creator_email: gracefo@podaac.jpl.nasa.gov
    creator_institution: NASA/JPL
    creator_name: GRACE Follow-On Science Data System
    creator_type: group
    creator_url: http://gracefo.jpl.nasa.gov
    date_created: 2026-03-31T16:24:07Z
    date_issued: 2026-04-06T13:49:38Z
    history:
      []
    id: 10.5067/GFJPL-L1B04
    institution: NASA/JPL
    instrument: LRI
    instrument_vocabulary: NASA Global Change Master Directory instrument keywords
    keywords: GRACE-FO, LRI
    keywords_vocabulary: NASA Global Change Master Directory (GCMD) Science Keywords
    license: https://science.nasa.gov/earth-science/earth-science-data/data-information-policy
    naming_authority: org.doi.dx
    platform: GRACE C
    platform_vocabulary: NASA Global Change Master Directory platform keywords
    processing_level: 1B
    product_version: 04
    program: NASA Earth Systematic Missions Program
    project: NASA Gravity Recovery And Climate Experiment Follow-On (GRACE-FO)
    publisher_email: podaac@jpl.nasa.gov
    publisher_institution: NASA/JPL
    publisher_name: Physical Oceanography Distributed Active Archive Center
    publisher_type: group
    publisher_url: http://podaac.jpl.nasa.gov
    references: https://podaac.jpl.nasa.gov/gravity/gracefo-documentation
    source: LRI Clock offset values for GRACE C
    summary: Clock offset values to convert LRI time tags to GPS Time
    time_coverage_start: 2000-01-01T12:00:00.00
    time_coverage_stop: 2000-01-01T12:00:00.00
    title: GRACE-FO Level-1B LRI Clock Offset Data
  non-standard_attributes:
    epoch_time: 2000-01-01T12:00:00.00
    software_build_time: 2023-06-21T17:10:46 UTC
    software_version: V04.10.2020-11-09-77-gc5e91-dirty
    start_time_epoch_secs: 0
    stop_time_epoch_secs: 0
  variables:
    - rcv_time:
        comment: 1st column
        coverage_content_type: referenceInformation
        long_name: Seconds past 12:00:00 noon of January 1, 2000 in LRI Time
        units: seconds
    - GRACEFO_id:
        comment: 2nd column
        coverage_content_type: referenceInformation
        long_name: GRACE-FO satellite identifier
        units: char
        valid_range: C,D
        value_meanings:
          - C = GRACE-FO 1 (GRACE C)
          - D = GRACE-FO 2 (GRACE D)
    - clock_id:
        comment: 3rd column
        coverage_content_type: referenceInformation
        long_name: Clock ID
    - eps_time:
        comment: 4th column
        coverage_content_type: modelResult
        long_name: Clock offset.  GPS Time = rcv_time + eps_time
        units: seconds
    - eps_err:
        comment: 5th column
        coverage_content_type: referenceInformation
        long_name: Formal error of eps_time
        units: seconds
        valid_range: modelResult
    - eps_drift:
        comment: 6th column
        coverage_content_type: modelResult
        long_name: Clock drift, or 1st time derivative of eps_time
        units: s/s
    - drift_err:
        comment: 7th column
        coverage_content_type: modelResult
        long_name: Formal error of eps_drift
        units: s/s
    - qualflg:
        comment: 8th column
        coverage_content_type: qualityInformation
        flag_masks: 1b, 2b, 4b, 8b, 16b, 32b
        flag_meanings:
          - bit 0 = Linear extrapolation of eps_time not valid AFTER rcv_time
          - bit 1 = Linear extrapolation of eps_time not valid BEFORE rcv_time
          - bit 2 = Overlap data missing before start midnight
          - bit 3 = Overlap data missing after start midnight
          - bit 4 = Overlap data missing before end midnight
          - bit 5 = Overlap data missing after end midnight
          - bits 6-7 = Not defined
        long_name: Quality Flags, bit 0 is rightmost
# End of YAML header
