VLA archive file 22B-193.sb43003826.eb45297607.60377.546968877316

[xinglunju]

SB 43003826
JACKS region 12

• Observations completed
• VLA CASA Calibration pipeline run by observatory
• Weblog downloaded and unpacked
• Raw data downloaded (specify where)
  • local machine
  • Globus
• Pipeline calibration assessment
• Calibrated MS generated
  • Uploaded to Globus
• Imaging: Continuum
• Imaging: Lines
  • NH3 (1,1)
  • NH3 (2,2)
  • NH3 (3,3)
  • NH3 (4,4)
  • NH3 (5,5)
  • H2O
  • H64
  • H66
  • NH3 (2,1)
  • NH3 (3,2)
  • NH3 (4,3)
  • NH3 (5,4)
  • NH3 (6,5)

Product Links

[xinglunju]

Log Name: 2024-03-08_1309_22B-193
Project: 22B-193
SBID(s): 43003826
EBID(s): 45297607
Observing Date: 08-Mar-2024
Observation Type: Science
Bands Used: X K
No. of Subarrays: 1
Observer(PI): Prof Elisabeth Mills
Source File(s): 22B-193_sb43003826_1_1
Operator(s): Pete DeSimone
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)
08Mar 13:12:15 -0.8 -1.4 SW at 3.5 m/s 782.6 2.2
08Mar 14:00:09 -0.9 -1.3 SW at 4.4 m/s 782.9 2.9
08Mar 14:42:29 -0.8 -0.7 SW at 3.7 m/s 783.4 2.2
08Mar 15:00:12 -0.6 -0.7 SW at 4.1 m/s 783.7 2.3
08Mar 16:07:20 -0.9 0.9 SW at 4.7 m/s 784.1 4.1

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

08Mar 13:12:15 Sky cover 60%. Cumuliform clouds.
08Mar 14:00:09 Sky overcast. Cumuliform clouds.
08Mar 14:42:29 Sky overcast. Cumuliform clouds. Snow.
08Mar 15:00:12 Sky overcast. Cumuliform clouds. Snow.
08Mar 16:07:20 Sky cover 90%. Cumuliform 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

08Mar 13:09:24
Starting project 22B-193.

08Mar 13:09:24
The band(s) used is(are): X K.

08Mar 13:11:58
On source 1331+305=3C286 with all available antennas.

08Mar 13:09:24
Antenna(s):28
do not have good baseline positions determined for them because they were
moved to their present location recently.
Please check for any significant errors and submit them to the NRAO Helpdesk
(https://science.nrao.edu/observing/helpdesk) under the VLA Observing
department.

08Mar 13:09:24
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/

08Mar 13:09:24
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/

08Mar 13:09:24 08Mar 16:38:51 FOCUS/ROTATION WO-18988 0.10 20.9
Antenna(s) 18 (Data: Lost):
Frequent subreflector faults or position errors.

08Mar 14:22:01 08Mar 14:27:01 SOFTWARE Other 5.70 28.5
Antenna(s) All (Data: Lost):
The zero-valued visibility fraction for AC_8-bit on Subband 1 was given as 21.1%.

08Mar 15:00:00
Your new operator(s) is(are): Laura Shishkovsky

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

08-Mar-2024 16:38:51 5655.2 0.9% 49.4

[xinglunju]

Issues noted but not flagged by staff:

• Few low amp points in uvwave plot for 3C286 are from baselines with ea15 in spw=10.

[kelizabeth7]

Flagging Summary

• ea02, ea07, ea27 all flagged in at least one cmz field by pipeline

Task Summary

• Flux density bootstrapping and spectral index fitting has a QA score of 0.89 (Max rms of the residuals is 0.0070055948985880655)

Stage 13 Plots

Final Amp Time Cal Plots

• ea28 has an odd plot shape:
  

Final Amp Freq Cal Plots

• ea18 and ea28 have larger vertical spreads in gain amp: