[daip] Re: CLCOR sign conventions
Leonia Kogan
lkogan at aoc.nrao.edu
Tue Jan 28 16:32:21 EST 2003
Mark,
The following is an extruction of the new help.
Do you think it is clear now?
Leonia
'ATMO' => apply atmospheric delay corrections using
zenith delay for the antennas and times given
at the input file. The values given at the
zenith delay correspond to the desired correction.
The correction recalculated to delay and phase
is added (with sign) to the relevant column
of the CL table.
Example 1. Correlator did not provide any
atmosphere correction. The atmosphere
delays are positive. The corrections
at the INFILE should be negative.
Therefore:
All infile entries are negative.
Example 2. The correlator model used 210 cm
delay for zenith.
The actual atmosphere delay on the
given antenna is 220cm. Thus
CLCOR has to make additional
correction of -10cm, the relevant
INFILE entries should be near -10cm
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