[evlatests] TCal values

Rob Long rlong at nrao.edu
Tue Oct 24 15:26:29 EDT 2023


The P-band serial numbers are not contained in the receiver. Maybe we 
should organize the folders by antenna number? The onus of maintaining 
the correct serial number for the antenna would fall on the FE group.

Rob

On 10/24/2023 12:55 PM, Barry Clark via evlatests wrote:
> 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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