[evlatests] Antenna slews in AH1004

Vivek Dhawan vdhawan at nrao.edu
Sat Mar 6 11:16:12 EST 2010


I believe I can confirm that this is excited by the OPT-generated
script: pointing/baselines use a (non-OPT?) dwell-time script and go
all over the sky, but miss only 1 or 2 scans out of a 100, with little
difference between antennas.

This behaviour has not changed at all in recent weeks so it is fixable
in AH1004; Though I am unsure how to edit the scripts myself.

On Fri, March 5, 2010 11:23 pm, Bryan Butler wrote:
|
| the OPT definitely allows one to set the wrap if desired.
|
| 	-bryan
|
|
| Ken Sowinski wrote, On 3/5/10 17:45:
|> On Fri, 5 Mar 2010, Vivek Dhawan wrote:
|>
|>> I just got done with a cursory look at the C55258.434 (AH1004)
|>> chunk, it looks good on the targets; but the flux cal scan 1331+3030
|>> is fringeless on 6 (otherwise good) antennas even though it is 4:15 long
|>> and most antennas got 1:30 or so dwell time. This should be repeated
|>> with 1331 adequately scheduled, perhaps by moving it a bit later in the
|>> schedule
|>
|> The fringeless antennas are clearly a wrap problem.  Whether
|> it is an observer oversight or a loss of information in
|> script generation I cannot tell.  The OPT allows wrap hints?
|> The scripts in question had every scan marked as 'dont-care-
|> about-wrap'.
|>
|> I suggest the script generator not include setWrap() calls
|> unless the observer has supplied an explcit hint to the OPT.





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