VLA Archive file 22B-193.sb42958526.eb42987381.59895.7734537963

[eacmills]

SB 42958526 JACKS region 4

• [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: 2022-11-12_1835_22B-193 Project: 22B-193 SBID(s): 42958526 EBID(s): 42987381 Observing Date: 12-Nov-2022 Observation Type: Science Bands Used: X K No. Subarrays: 1 Observer(PI): Prof Elisabeth Mills Source File(s): 22B-193_sb42958526_1_1 Operator(s): Hannah Brower Array Configuration: C Decommissioned Antenna: 20

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) 12Nov 18:36:13 -7.8 7.3 W at 3.3 m/s 788.8 6.0 12Nov 20:00:10 -7.8 9.3 S at 3.2 m/s 787.5 9.1 12Nov 22:00:08 -9.7 8.9 E at 6.7 m/s 786.8 8.9

Operator comments for the above weather entries

12Nov 18:36:13 Sky clear.
12Nov 20:00:10 Sky clear.
12Nov 22:00:08 Sky clear.

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

12Nov 18:35:35 Starting project 22B-193.

12Nov 18:35:35 The band(s) used is(are): X K.

12Nov 18:36:02 On source 1331+305=3C286 with all available antennas.

12Nov 18:35:35 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/

12Nov 18:35:35 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/

12Nov 18:35:35 12Nov 22:05:02 LO-IF WO-15533 1.00 209.5 Antenna(s) 12 (Data: Lost): LO module down, antenna parked

12Nov 18:35:35 12Nov 22:05:02 SERVO WO-15524 1.00 209.5 Antenna(s) 16 (Data: Lost): Elevation motor errors, antenna parked

12Nov 18:35:35 12Nov 22:05:02 SERVO WO-15539 1.00 209.5 Antenna(s) 07 (Data: Lost): Azimuth CB faults, antenna parked

12Nov 18:35:35 12Nov 22:05:02 CRYOGENICS WO-15535 0.89 185.4 Antenna(s) 06 (Data: Corrupted): Compressor issues, K band receiver warm. Data may be weak

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

12-Nov-2022 22:05:02 5655.2 14.4% 813.7

[eacmills]

Pipeline issues noted by staff:

• ea05 gain amplitude solutions show a split about half way through the observation.

• ea14 gain amplitude solutions are low for a few scans.

• ea17 gain ampliutde solutions are very high for a few scans.

• ea26 gain amplitude solutions are low for some scans.

• The complex gain calibrator shows decorrelation, primarily from scan='2,33~50,54,59,63~69,73'.

[sz0924]

Issues noted but not flagged by staff

• ea05 gain amplitude solutions show a split about half way through the observation.

• ea14 gain amplitude solutions are low for a few scans.

• ea17 gain ampliutde solutions are very high for a few scans.

• ea26 has some low gain amplitudes for some scans.

• The complex gain calibrator shows decorrelation, primarily from scan='2,33~50,54,59,63~69,73'. [?]

[sz0924]

Other issues

• ea17 gain amplitude solutions show outliers for half of the spws.