[evlatests] Antenna 21, and pointing

[Rick Perley]

    I refilled the data, to include the detailed pointing data. 

    It is clear that the EVLA was 10 seconds behind the VLA in the 
pointing raster.   This will surely confuse the offset fitting algorithm. 

   

Barry Clark wrote:
> I looked at the raw solution attempts (
> /home/mchost/bclark/NRAO/EVLA/TRANSITION/TELCAL/src/c/APEVLA.PNT).
> and it appears that all attempts are being rejected because of absurd
> beamwidths in azimuth, including negative values.  Elevation beamwidth
> look OK.  Most probable cause is some sort of sequence error in stepping 
> through the pointing sequence.
>
>   
>> From evlatests-bounces at donar.cv.nrao.edu  Wed Apr  4 09:22:59 2007
>> Date: Wed, 04 Apr 2007 09:22:38 -0600
>> From: Rick Perley <rperley at nrao.edu>
>>     
>
> [snip]
>
>   
>>     2) Referenced pointing was attempted again for this run, with the 
>> same results as earlier in the day.  No solutions on any EVLA antenna, 
>> at any band, with a single, curious exception:  We got a good solution 
>> on antenna 13, at Q-band! 
>>
>>     Some EVLA antennas were behaving badly, in amplitude and phase.  
>> Rather than clutter up this space, I'll circulate the evidence to the 
>> primary individuals concerned. 
>>
>>     We plan to do a full pointing run this evening -- it would be very 
>> useful if the issue which is flagging all the EVLA pointing data can be 
>> resolved today. 
>>
>>     
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