Find us here too:
BitWise Ideas
  • Welcome
    • Testimonials
    • About Us
    • Contact Us
    • Downloads
  • Products
    • GeoLab
    • Closure
    • Educational
  • Services
    • Training
    • Geoids

GEOI: Geoid Values

This record specifies the geoid undulation and deflections of the vertical for a station. Only the values that have not already been defined for the station are actually used (the first record (GEOI or GFIL) defining geoid data for a station is the one actually used).
This record has two possible formats, a long parameter name format, and a short parameter name format. If column 10 contains an asterisk (*) the long name format is expected, otherwise the short name format is expected.

The short parameter format of this record is as follows (from column - to column: description): 
  • 002-005: GI
  • 010: (blank)
  • 011-022: Station name
  • 024: Sign (-/+/space) of north/south deflection
  • 025-027: Degrees of north/south deflection
  • 029-030: Minutes of north/south deflection
  • 032-040: Seconds of north/south deflection
  • 042: Sign (-/+/space) of east/west deflection
  • 043-045: Degrees of east/west deflection
  • 047-048: Minutes of east/west deflection
  • 050-058: Seconds of east/west deflection
  • 060-071: Geoid undulation
  • 073-074: Linear unit name

The short parameter format of this record is as follows (from column - to column: description): 
  • 002-005: GEOI
  • 010: * (asterisk)
  • 011-041: Station name
  • 043: Sign (-/+/space) of north/south deflection
  • 044-046: Degrees of north/south deflection
  • 048-049: Minutes of north/south deflection
  • 051-059: Seconds of north/south deflection
  • 061: Sign (-/+/space) of east/west deflection
  • 062-064: Degrees of east/west deflection
  • 066-067: Minutes of east/west deflection
  • 069-077: Seconds of east/west deflection
  • 079-090: Geoid undulation
  • 092-093: Linear unit name
Copyright ©, 1985-2018, BitWise Ideas Inc. All Rights Reserved.  All names are (registered) trademarks of their respective companies.