[evlatests] Holes in the Switched Power Table

[Rick Perley]

     Bill Cotton dove into the switched power table for the database 
where I found switched power 'holes'.

     He reports that indeed, it is the table itself which has holes. The 
missing data are *not* due to an error in BDFIn.  The attaching listing 
(from Bill) shows the actual data for one antenna, one subband, at one 
band, for a single scan of 3C286.  The missing timestamps perfectly 
match the holes I found in the plots I used which demonstrated the problem.

     So the problem is presumably at the stationboard level ...

     Rick


-------- Original Message --------
Subject: 	Re: Could BDFIn do that?
Date: 	Thu, 07 Aug 2014 16:43:00 -0400
From: 	William Cotton <bcotton at nrao.edu>
To: 	Rick Perley <rperley at aoc.nrao.edu>
CC: 	bcotton at nrao.edu



Rick,

     See the attached listing (the 8th SW of X band is SW id 89). There
are indeed holes as you describe.
This listing should be all entries in the given time range, selected
antenna and Spectral window.
With a little cleanup, I'll put the task into the standard distribution
to insure it's never needed again.

-Bill
On 08/07/2014 04:27 PM, Rick Perley wrote:
> All show lots of gaps, but you can try ...
>
>     ea03,and subband #8.
>
>     You should find *no* Sys data at 22 04 29 -- 22 04 31, and none
> between 22 04 34 through 22 04 38, for that antenna and that subband.
>
>     Rick


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Dump of ASDM SysPower table in /lustre/bcotton/FITS/13B-088/13B-088.sb29378572.eb29392192.56835.82200315972
 
Observed 2014-06-27, Array = EVLA, Observer = Mr. Henrik Junklewitz
time 00/22:04:20.5 AntID  2 (ea03)  SWId  89 SPDif  0.237 SPSum   14.6 RG  0.01  pol 2: SPDif  0.243 SPSum   15.0 RG  0.015
time 00/22:04:21.5 AntID  2 (ea03)  SWId  89 SPDif  0.238 SPSum   14.6 RG  0.01  pol 2: SPDif  0.245 SPSum   15.0 RG  0.015
time 00/22:04:22.5 AntID  2 (ea03)  SWId  89 SPDif  0.234 SPSum   14.5 RG  0.01  pol 2: SPDif  0.242 SPSum   15.0 RG  0.015
time 00/22:04:23.5 AntID  2 (ea03)  SWId  89 SPDif  0.235 SPSum   14.6 RG  0.01  pol 2: SPDif  0.243 SPSum   15.0 RG  0.015
time 00/22:04:24.5 AntID  2 (ea03)  SWId  89 SPDif  0.237 SPSum   14.5 RG  0.01  pol 2: SPDif  0.242 SPSum   15.0 RG  0.015
time 00/22:04:25.5 AntID  2 (ea03)  SWId  89 SPDif  0.237 SPSum   14.6 RG  0.01  pol 2: SPDif  0.243 SPSum   15.0 RG  0.015
time 00/22:04:26.5 AntID  2 (ea03)  SWId  89 SPDif  0.238 SPSum   14.6 RG  0.01  pol 2: SPDif  0.241 SPSum   15.0 RG  0.015
time 00/22:04:28.5 AntID  2 (ea03)  SWId  89 SPDif  0.238 SPSum   14.5 RG  0.01  pol 2: SPDif  0.243 SPSum   15.0 RG  0.015
time 00/22:04:31.5 AntID  2 (ea03)  SWId  89 SPDif  0.237 SPSum   14.5 RG  0.01  pol 2: SPDif  0.242 SPSum   15.0 RG  0.015
time 00/22:04:32.5 AntID  2 (ea03)  SWId  89 SPDif  0.238 SPSum   14.5 RG  0.01  pol 2: SPDif  0.244 SPSum   15.0 RG  0.015
time 00/22:04:33.5 AntID  2 (ea03)  SWId  89 SPDif  0.236 SPSum   14.5 RG  0.01  pol 2: SPDif  0.241 SPSum   15.0 RG  0.015
time 00/22:04:37.5 AntID  2 (ea03)  SWId  89 SPDif  0.235 SPSum   14.5 RG  0.01  pol 2: SPDif  0.243 SPSum   15.0 RG  0.015
time 00/22:04:40.5 AntID  2 (ea03)  SWId  89 SPDif  0.236 SPSum   14.5 RG  0.01  pol 2: SPDif  0.242 SPSum   15.0 RG  0.015
time 00/22:04:41.5 AntID  2 (ea03)  SWId  89 SPDif  0.236 SPSum   14.5 RG  0.01  pol 2: SPDif  0.242 SPSum   15.0 RG  0.015
time 00/22:04:46.5 AntID  2 (ea03)  SWId  89 SPDif  0.236 SPSum   14.5 RG  0.01  pol 2: SPDif  0.242 SPSum   15.0 RG  0.015
time 00/22:04:47.5 AntID  2 (ea03)  SWId  89 SPDif  0.236 SPSum   14.5 RG  0.01  pol 2: SPDif  0.238 SPSum   15.0 RG  0.015