[daip] Re: Followup to gripe re CALIB time tags in SN tables.
Eric Greisen
egreisen at nrao.edu
Tue Jun 20 12:06:16 EDT 2000
The CALIB (and FRING problems are caused by a round-off added to the
scan interval to handle the inexactness of times. CALIB claimed to
add 2 sec but actually added 4.3 or so. FRING claimed to add 2 but
actually added 1. I will change both to 0.1. The messages below came
first from the corrected and 2nd from the old version:
tigua > CALIB1: Determining solutions
tigua > CALIB1: Writing SN table 9
tigua > CALIB1: Found 2200 good solutions
tigua > CALIB1: Failed on 61 solutions
tigua > CALIB1: 1 solutions had insufficient data
tigua > CALIB1: Determining solutions
tigua > CALIB1: Writing SN table 10
tigua > CALIB1: Found 3613 good solutions
tigua > CALIB1: Failed on 688 solutions
tigua > CALIB1: 159 solutions had insufficient data
Thanks for following this up. The real trouble stems from the very
short time you had between scans plus the bad roundoffs.
Eric
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