VLA Archive file 22B-193_sb43002188_1_1_000.59923.71110753472

[eacmills]

SB 43002188 JACKS region 6

• [x] Observations completed
• [x] VLA CASA Calibration pipeline run by observatory
• [x] 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)

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[eacmills]

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Log Name: 2022-12-10_1703_22B-193 Project: 22B-193 SBID(s): 43002188 EBID(s):
Observing Date: 10-Dec-2022 Observation Type: Science Bands Used: X K No. Subarrays: 1 Observer(PI): Prof Elisabeth Mills Source File(s): 22B-193_sb43002188_1_1 Operator(s): Kenneth Gibson Array Configuration: C Decommissioned Antenna: 12

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) 10Dec 17:04:26 -1.5 2.3 W at 2.1 m/s 790.4 2.5 10Dec 18:00:08 -2.5 5.6 SW at 1.0 m/s 790.4 4.3 10Dec 20:00:05 -9.4 10.0 S at 1.9 m/s 788.8 7.2

Operator comments for the above weather entries

10Dec 17:04:26 Sky clear.
10Dec 18:00:08 Sky clear.
10Dec 20:00:05 Sky cover 10%. 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

10Dec 17:03:54 Starting project 22B-193.

10Dec 17:03:54 The band(s) used is(are): X K.

10Dec 17:03:55 On source 1331+305=3C286 with all available antennas.

10Dec 17:03:54 Antenna(s):20 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.

10Dec 17:03:54 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/

10Dec 17:03:54 Note: To support our ongoing RFI monitoring efforts, any feedback from your program on RFI can be sent to: nrao-rfi@nrao.edu 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/

10Dec 17:03:54 10Dec 20:35:19 LO-IF WO-15503 0.25 52.9 Antenna(s) 14 (Data: Corrupted): IF C0 dead at times, possible problem with T304-C down converter

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

10-Dec-2022 20:35:19 5708.2 0.9% 52.9

[eacmills]

Issues noted but not flagged by staff during pipeline run:

• Due to a correlator issue ~4.4% of the data are pure zero value. Please check your data ASAP. A breakdown of how each spectral window was affected is given below. If you find that you cannot meet science goals due to the issue please contact the VLA Scheduling Officer at: schedsoc@nrao.edu

• Antenna ea14 shows an amplitude gain issue on spw='9,10'.

Zeros Breakdown: spw 0 flagged: 422080 total: 1.23013e+08 (0.343%) spw 1 flagged: 400576 total: 1.23013e+08 (0.326%) spw 2 flagged: 808705 total: 3.27974e+08 (0.247%) spw 3 flagged: 808704 total: 3.27974e+08 (0.247%) spw 4 flagged: 808708 total: 3.27974e+08 (0.247%) spw 5 flagged: 809107 total: 3.27974e+08 (0.247%) spw 6 flagged: 6.51571e+06 total: 2.6238e+09 (0.248%) spw 7 flagged: 1.17002e+07 total: 5.24759e+09 (0.223%) spw 8 flagged: 5.64818e+08 total: 5.24759e+09 (10.8%) spw 9 flagged: 1.2331e+07 total: 5.24759e+09 (0.235%) spw 10 flagged: 1.23863e+07 total: 5.24759e+09 (0.236%) spw 11 flagged: 1.71479e+07 total: 5.24759e+09 (0.327%) spw 12 flagged: 808705 total: 3.27974e+08 (0.247%) spw 13 flagged: 808705 total: 3.27974e+08 (0.247%) spw 14 flagged: 809196 total: 3.27974e+08 (0.247%) spw 15 flagged: 1.16163e+07 total: 5.24759e+09 (0.221%) spw 16 flagged: 1.50364e+07 total: 5.24759e+09 (0.287%) spw 17 flagged: 1.51265e+07 total: 5.24759e+09 (0.288%) spw 18 flagged: 1.16736e+07 total: 5.24759e+09 (0.222%) spw 19 flagged: 2.2755e+09 total: 5.24759e+09 (43.4%) spw 20 flagged: 6.70515e+06 total: 2.6238e+09 (0.256%) spw 21 flagged: 1.66625e+07 total: 5.24759e+09 (0.318%) spw 22 flagged: 808707 total: 3.27974e+08 (0.247%) spw 23 flagged: 808705 total: 3.27974e+08 (0.247%) spw 24 flagged: 808705 total: 3.27974e+08 (0.247%) spw 25 flagged: 808704 total: 3.27974e+08 (0.247%) spw 26 flagged: 1.66231e+07 total: 3.27974e+08 (5.07%) spw 27 flagged: 808706 total: 3.27974e+08 (0.247%) spw 28 flagged: 808705 total: 3.27974e+08 (0.247%) Total Flagged: 3.00518e+09 Total Counts: 6.78088e+10 (4.43%)

[nbutterf]

Weblogs notes:

-ea14 has some issues (see step 13; Final Amp Time Cal plots) - might need additional flagging. -odd psf in the calibrator image - but this could be due to ea14. -no other major issues to note with this weblog.

[nbutterf]

Data download from the archive in progress to local machine.