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