[daip] CLCOR OPCODE='CLOC' bug?
Walter Brisken
wbrisken at nrao.edu
Wed Feb 3 18:49:23 EST 2010
Hi AIPS,
I'm about to mail 5 VLBA users that should be notified about unwanted
clock jumps in some DiFX correlated data. I was going to propose a fix
using CLCOR with OPCODE='CLOC' since all the needed parameters are easily
determined based on the correlator jobs that were run. Note that this
application would make use of CLCORPRM(7) = 1 (the option to add
offset and rate corrections to the CL table).
In my testing of the correction I noticed that the following table columns
got updated:
CLOCK (1 & 2)
DCLOCK (1 & 2)
REAL (1 & 2)
IMAG (1 & 2)
DELAY (1 & 2)
The adjusted values appear consistent with the values I supplied.
Conspicuously not changed were the RATE (1 & 2) columns. My understanding
is that these columns should have CLCORPRM(1) (appropriately scaled from
ns/day to sec/sec) added to the existing RATE columns.
Can someone more knowledgeable than I look into this?
Thanks
Walter
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