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Subject: Help with interpretation of deflection from the vertical
From: Fred Hebard (Fred@XXX.XXX)
Date: Tue Mar 18 2003 - 22:05:47 EST
I downloaded one of the programs from the geodetic survey site
referenced by Doug Stephen, and I also ran the online version of
Deflec99, but I'm having trouble interpreting the output.
Deflec99's output from the interactive version for my location was:
latitude longitude Xi Eta
Hor Lap
Station Name ddd mm ss.sssss ddd mm ss.sssss arc-sec arc-sec
arc-sec
USER LOCATION 36 46 48.00000 80 50 42.00000 -2.72
0.61 -0.45
The intd routine, also from the Deflec99 folder, gave an output of:
latitude longitude Xi Eta
Hor Lap
Station Name ddd mm ss.sssss ddd mm ss.sssss arc-sec arc-sec
arc-sec
Our House 36 46 48.00000 81 50 42.00000 -2.14
0.33 -0.25
For comparison the output for a location near Denver, Colorado, gave:
latitude longitude Xi Eta
Hor Lap
Station Name ddd mm ss.sssss ddd mm ss.sssss arc-sec arc-sec
arc-sec
USER LOCATION 40 0 0.00000 105 5 0.00000 2.06
13.22 -11.09
The basic question is, what does this mean? The readme for Deflec99
discusses deviations in azimuth, but deviations in altitude are
mentioned less frequently.
Thanks,
Fred
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