[daip] offset between HDF New VLA and old VLA data
Glenn Morrison
morrison at cfht.hawaii.edu
Thu Apr 3 18:54:16 EDT 2008
Eric,
>
>
> 1. FILLM after July 5, 2007 (in version 31DEC07 updated after that
> date)
> gives correct times, unlike versions from before that date that
> gave times at the ends of the on-line integrations.
FILLM was run in 2006 or earlier for all these data, AM857 (2006 A-
array) & AM825 (2005 B-array). But this was also true for AR386, these
1996 Richards data.
>
>
> 2. UVFIX has a time correction parameter - that must be set to 1/2
> the on-line integration time for data FILLMed before the version
> change and must be set to 0.0 for data FILLMed after that change.
Based on info in your earlier email, I think this was correct, i.e.,
time correction=1/2. But I don't have any old tget files on this mac
pro so tonight when I go home, I'll check the G5 for my old UVFIX
values.
>
>
> In previous discussions on this issue, it seemed apparent to me that
> you were confused on this point. It is essential for this issue and
> must be done correctly. Data FILLMed with the latest FILLM but then
> UVFIXed with a time offset will be rotated from correct.
>
> Eric Greisen
--Glenn
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