[evlatests] TCal values

Barry Clark bclark at nrao.edu
Tue Oct 24 14:55:12 EDT 2023


Yes, the values there I just typed in by hand.  I haven't tried to keep 
them up to date at all.

On 10/24/2023 12:18 PM, Ken Sowinski via evlatests wrote:
> On Tue, 24 Oct 2023, Bryan Butler via evlatests wrote:
>>
>> Rich should be able to get these in.  But he's on vacation right now 
>> (I think he still is - he was last week).
>
> Barry has a utility to update Tcal values from the FE repository on 
> filehost.  I could well be missing sometihng, but it looks like it will
> not work for Pband.
>
> An additoonal problem is how to learn the serial number of the P band 
> receiver at each antenna.  It is available for other bands from the F317;
> again, I am not sure where to find it for P band.
>
> Ken
>
>
>>     -Bryan
>>
>>
>> Rob Long via evlatests wrote on 10/24/23 09:42:
>>>  Hi Rick,
>>>
>>>  There are existing folders in filehost that are for the P-band and 
>>> 4-band
>>>  cal data. This is in the same area as the cryo receiver T-cal data.
>>>  (\\filehost\evla\techdocs\FE_Rx_Data\EVLA\P-band F302 (or 4-band 
>>> F301).
>>>  The data is in a .txt file.
>>>
>>>  I can get all of these folders added/updated.
>>>
>>>  Rob
>>>
>>>  On 10/24/2023 9:05 AM, Rick Perley via evlatests wrote:
>>>>
>>>>  Eric reminded me that the Tcal values used to calculate the system
>>>>  temperatures are available in the 'CD' table.
>>>>
>>>>  Reviewing this, I find that all antennas *except* ea12, ea18, 
>>>> ea20, ea23,
>>>>  ea24, ea25, and ea26 are set to 1.0  K.  The values for the named
>>>>  antennas range from 10 to 23K, and are different between the two
>>>>  polarizations.  (ea13 was out of the array, so no statement can be 
>>>> made
>>>>  for it).
>>>>
>>>>  It would be good to update these values, so reasonable values of 
>>>> Tsys can
>>>>  be generated.
>>>>
>>>>  Rick
>>>>
>>>>
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>>>
>>>
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