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Log Name: 2024-03-22_1149_22B-193 Project: 22B-193 SBID(s): 43010613 EBID(s): 45320374 Observing Date: 22-Mar-2024 Observation Type: Science Bands Used: X K No. of Subarrays: 1 Observer(PI): Prof Elisabeth Mills Source File(s): 22B-193_sb43010613_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) 22Mar 11:49:45 0.2 4.7 SW at 4.5 m/s 788.9 3.5 22Mar 12:00:13 0.0 4.0 SW at 3.6 m/s 789.1 3.4 22Mar 13:00:14 -0.5 2.6 W at 2.9 m/s 789.5 3.2 22Mar 14:00:11 -0.3 4.2 W at 4.1 m/s 789.8 3.1 22Mar 15:00:23 0.1 6.3 SW at 2.9 m/s 790.4 5.4
Operator comments for the above weather entries
22Mar 11:49:45 Sky cover 10%. Stratiform clouds. 22Mar 12:00:13 Sky cover 10%. Stratiform clouds. 22Mar 13:00:14 Sky cover 10%. Stratiform clouds. 22Mar 14:00:11 Sky cover 10%. Stratiform clouds. 22Mar 15:00:23 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
22Mar 11:49:09 Starting project 22B-193.
22Mar 11:49:09 The band(s) used is(are): X K.
22Mar 11:49:19 On source 1331+305=3C286 with all available antennas.
22Mar 11:49:09 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.
22Mar 11:49:09 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/
22Mar 11:49:09 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:
22Mar 11:49:09 22Mar 15:18:36 SERVO WO-20584 1.00 209.5 Antenna(s) 11 (Data: Lost): Excluded due to azimuth oscillation.
22Mar 11:49:09 22Mar 15:18:36 SERVO WO-20485 1.00 209.5 Antenna(s) 13 (Data: Lost): Excluded due to azimuth oscillation.
22Mar 12:04:16 22Mar 12:18:24 WEATHER Weather 1.00 14.1 Antenna(s) 6 (Data: Lost): Antenna(s) auto-stowed due to high winds.
22Mar 12:16:13 22Mar 12:21:26 SOFTWARE Other 7.10 37.0 Antenna(s) All (Data: Lost): The Correlator Back End (CBE) reports the zero-valued visibility fraction across all subbands as 0.263. The event lasted approximately 5 minutes.
22Mar 11:49:09 22Mar 15:18:36 FOCUS/ROTATION WO-20447 0.10 20.9 Antenna(s) 27 (Data: Lost): Frequent subreflector faults or position errors.
22Mar 13:03:07 22Mar 13:08:49 SOFTWARE Other 2.84 16.2 Antenna(s) All (Data: Lost): The Correlator Back End (CBE) reports the zero-valued visibility fraction across all subbands as 0.105. The event lasted approximately 5 minutes.
22Mar 13:49:58 22Mar 13:54:58 SOFTWARE Other 4.27 21.3 Antenna(s) All (Data: Lost): The Correlator Back End (CBE) reports the zero-valued visibility fraction across all subbands as 0.158. The event lasted approximately 5 minutes.
22Mar 13:55:00 Your new operator(s) is(are): Aaron Lovato
22Mar 14:36:49 22Mar 14:41:32 SOFTWARE Other 4.27 20.1 Antenna(s) All (Data: Lost): The Correlator Back End (CBE) reports the zero-valued visibility fraction across all subbands as 0.158. The event lasted approximately 5 minutes.
Project End Time Total Time % Down Time Total Down Time (minutes x 27 ants) (minutes)
22-Mar-2024 15:18:36 5655.2 9.7% 548.6
SB 43010613 JACKS region 26
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