[evlatests] Sys Cal saga.

[Rich Moeser]

  Bryan is referring to the CalDevice table and tcal values, not the 
SysPower table. The SysPower table is correct and contains data for both 
RCP and LCP, the CalDevice table has only RCP. This will change when the 
noiseCal field in the CalDevice table is changed to a 2-dimensional array.

--Rich

On 10/29/2010 10:30 AM, Bill Cotton wrote:
> "BB" == Bryan Butler<bbutler at nrao.edu>  writes:
>
> BB>  Vivek Dhawan wrote, On 10/25/10 21:22 PM:
>>> For OSRO-1 (1 subband per baseband, 2bb, 2 pol) the tables are populated
>>> as follows: IF1 and IF2 appear different, pol1 and pol2 are identical.
> BB>  this is expected, since the SDM table only has a place for a single
> BB>  polarization and we made a choice to put RCP in there.  this should
> BB>  change in the near future, but i don't have a good timescale for it
> BB>  (weeks would be a guess).  i suspect bill's filler reproduces the RCP
> BB>  (which is in the SDM table) into the LCP part of the table in AIPS.
> Bryan,
>
>     I may be misunderstanding what's going on but I believe this is not
> correct. The ASDM/SysPower.xml table has multiple receptors:
>      <numReceptor>2</numReceptor>
>      <switchedPowerDifference>1 2 31.650478 39.940025</switchedPowerDifference>
>      <switchedPowerSum>1 2 0.599392 0.951718</switchedPowerSum>
>      <requantizerGain>1 2 512.0 512.0</requantizerGain>
> Which I assumed were the RCP and LCP values for a given spectral
> window and copy these values to the appropriate place in the AIPS SY
> table.  At least the AIPS SY table I looked at had different values
> for pol 1 and pol 2.
>
> -Bill
>
>
>
>>> For RSRO data (8subbands per baseband, 2bb, 2 pol) all the subb are identical
>>> and 2 pol are also identical. This feature is present in the ASDM table, not
>>> caused by BDF2AIPS. (Thanks to Josh Marvil, Steve Myers for checking this
>>> in the ASDM)
> BB>  the polarizations being the same is expected (see above comment), but
> BB>  they should be different for each of the subbands.  i'll check with rich
> BB>  about how he's populating that SDM table.
>
> BB>  	-bryan
>
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