[evlatests] 2007-04-18_0642_ESP.txt

[Ken Sowinski]

> Filename:       2007-04-18_0642_ESP
> Program:        ESP                  Subarray(s):          1
> Observer(s):    Operations           Operator(s):          Jim Campbell
> Date:           04/18/2007           Configuration:        D
> User #:        64                    Decommissioned:        19
> Source File(s): SYSCOLL              VLBI Ref. Ant:
> Observing Mode: Continuum            VLBI Antenna Pad:
> Email Address:  ptg/bl
>
>
> ** Weather Information **
>
> Time (IAT)         Dew Pt   Temp   Wind              Bar. Press    API
> 18Apr 06:42:33     -7.5     4.0    W at 2.6 m/s      788.8         2.7
> 18Apr 7:59:07      -6.8     3.9    W at 1.6 m/s      788.6         2.0
> 18Apr 8:59:15      -6.9     1.7    N at 2.1 m/s      788.1         3.6
> 18Apr 9:59:16      -7.3     -0.2   SW at 0.5 m/s     788.1         3.5
> 18Apr 10:59:27     -8.2     -3.1   NW at 0.9 m/s     787.7         1.9
> 18Apr 11:59:40     -7.8     -2.2   NW at 0.9 m/s     787.7         10.5
> 18Apr 13:00:01     -7.4     -2.2   NE at 0.2 m/s     787.8         12.3
> 18Apr 13:59:26     -6.2     0.6    NW at 0.6 m/s     788.1         2.9


                  Pointing Collimation Run
                      April 18, 2007

The intent was to verify VLA collimations and determine collimation
for newly commisioned EVLA receivers.  This was partly successful.

The EVLA script was slow to get started because an error had been
introduced in VLApointing.py.  As a result we have over six hours
of data for VLA antennas and about five hours for EVLA antennas.

Antenna 22 was out of service.

VLA antennas are mostly fine.  Small changes were required for
antenna 20 and 25.

EVLA antennas are mixed.  The biggest mystery is why antenna 21
did not work.  Was it actually in use for this pointing run?
EA13 wants small changes to El col at K and Q bands.
EA14 did not work well except at K band!
EA16 did not work well at any band!
EA17 First collimation results for C and K; no Q band Rx yet.
            Az      El changes
      C   -1.35   -1.77
      K    0.61    0.0
EA18 OK.
EA21 No data at all!
EA23 Only worked at X band.  K band is expected but not there.
EA24 OK.
EA26 OK  (Only X and K bands available)