VLA archive file 22B-193.sb43010816.eb45320533.60392.42044637731 #30

xinglunju · 2024-07-12T09:37:38Z

xinglunju · 2024-07-12T09:38:13Z

Log Name: 2024-03-23_1005_22B-193
Project: 22B-193
SBID(s): 43010816
EBID(s): 45320533
Observing Date: 23-Mar-2024
Observation Type: Science
Bands Used: X K
No. of Subarrays: 1
Observer(PI): Prof Elisabeth Mills
Source File(s): 22B-193_sb43010816_1_1
Operator(s): Sam Gilmore
Array Configuration: C
Decommissioned Antenna: 26

Adobe PDF version of this log is located at:
http://www.vla.nrao.edu/operators/logs/

***** WEATHER INFORMATION *****

Time(UTC) Dew Pt Temp Wind Bar Press API RMS Phase(degs)
23Mar 10:07:22 -3.3 2.6 NW at 0.8 m/s 786.1 4.0
23Mar 11:00:40 -2.7 1.3 E at 0.5 m/s 786.0 5.1
23Mar 12:01:00 -3.1 2.5 SE at 1.4 m/s 785.8 2.6
23Mar 13:33:20 -3.1 -0.1 SE at 0.7 m/s 786.0 2.0

*** Operator comments for the above weather entries ***

23Mar 10:07:22 Sky cover 40%. Stratiform clouds.
23Mar 11:00:40 Sky cover 30%. Stratiform clouds.
23Mar 12:01:00 Sky cover 30%. Stratiform clouds.
23Mar 13:33:20 Sky cover 70%. Stratiform clouds.

***** COMMENTS AND OUTAGES *****

Outage information format:
Start Time, End Time, Category, Form#, # Antennas, Down Time(minutes)
Antenna ID(s) and Data Effect
Description

Number of Antennas Used: 27

23Mar 10:05:26
Starting project 22B-193.

23Mar 10:05:26
The band(s) used is(are): X K.

23Mar 10:05:27
On source 1331+305 with all available antennas.

23Mar 10:05:26
Antenna(s):28
have recently updated baseline parameters to correct for errors resulting from
their recent relocation. Please check for any significant errors and submit
them to the NRAO Helpdesk (https://science.nrao.edu/observing/helpdesk)
under the VLA Observing department.

23Mar 10:05:26
To access your data from the NRAO archive visit:
https://science.nrao.edu/facilities/vla/archive
All VLA science data are processed through the VLA calibration pipeline. Details
are at: https://science.nrao.edu/facilities/vla/data-processing/pipeline
For further questions please use the NRAO Helpdesk at:
https://science.nrao.edu/observing/helpdesk
Adobe PDF version of this log is located at:
http://www.vla.nrao.edu/operators/logs/

23Mar 10:05:26
Note: To support our ongoing RFI monitoring efforts, any feedback from your
program on RFI can be sent to: [email protected]
The key information to provide is:

Observation/project code
Frequency and Time of the observations
The characteristics of the RFI signal, in particular if it is continuous or
intermittent?
If possible, a spectrum of the RFI should be included in the e-mail.
Thanks very much for your support; this information will be continuously
updated on the EVLA science pages at:
https://science.nrao.edu/facilities/vla/docs/manuals/obsguide/modes/rfi/

23Mar 10:05:26 23Mar 13:34:51 FOCUS/ROTATION Other 0.02 4.2
Antenna(s) 27 (Data: Lost):
Frequent subreflector faults or position errors.

23Mar 10:05:26 23Mar 13:34:51 FOCUS/ROTATION Other 0.02 4.2
Antenna(s) 4 (Data: Lost):
Frequent subreflector faults or position errors.

Project End Time Total Time % Down Time Total Down Time
(minutes x 27 ants) (minutes)

23-Mar-2024 13:34:51 5654.3 0.1% 8.4