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| 03:00-09:00; Longji: | 03:00-09:00; Longji: High opacity and fog during the first half of the shift. Opacity dropped to 0.5 and it was reasonably stable at ~07h (LT). DAQ restarted; bad KIDs: 65, 8, 90. Pointing/focus on 1226+023. El. motors current alarm was triggered several times because of the wind. Resuming at 08:45. Mean tau_225 about 0.45. Bilal takes over. |
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| 09:00-12:30; Bilal: Starting with mediocre weather (tau~0.5) and timeline variations above 50Jy! | 09:00-14:00; Bilal: Starting with mediocre weather (tau~0.5) and timeline variations above 50Jy! I've been looping around pointings and focus because of very poor weather, deep within clouds. At the end of the shift, moving on to calibrators to get some values. Instability going from 50Jy to 200Jy, easing down to 10Jy at the end of the shift. |
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| 12:30-16:30; Pablo: 16:30-21:00; Angel: |
15:00-21:00; Angel: tau_225 < 0.3 over the first half of the shift. Atmosphere was quite unstable till ~15:30 (p2p variations between +/-5 and 20 Jy/beam at 2 mm; slightly enhanced beam: e.g. FHWM 18.6 x 19.5 sq.-arcsec). After some stabilization, we got @calib_1scan on NGC7027 and CRL2688 (scans 202211s127 and s129), and @skydip (s132). Switching to project 160-16 (IMEGIN). |
Daily Reports
Contents
Nov 22nd, Tuesday
16:00-21:00; Angel: NIKA2 cryostat checked and DAQ activated for getting selected noise traces by DJ: ok. Rainy and foggy all the shift. System check devoted to the setup for VLBI dual-receiver test (Wednesday and Thursday, 12:30-16:30, LT). No observations. Wobbler system is apparently broken (MC, SS): under study.
21:00-03:00; Jean-François: opacity > 0.8 during the first half of the run, no observation. Then it "improved" down to 0.45 in tracking the Bilal tau predictions that were promising. So we decided to have a go with nika2. [DAQ restarted at ~01:20 LT; Bad KIDs: 68, 4, 104]. However, after pointing and focus on Uranus, the opacity abruptly increased to higher than 1 till the end of the shift.
Nov 23rd, Wednesday
03:00-09:00; Longji: High opacity and fog during the first half of the shift. Opacity dropped to 0.5 and it was reasonably stable at ~07h (LT). DAQ restarted; bad KIDs: 65, 8, 90. Pointing/focus on 1226+023. El. motors current alarm was triggered several times because of the wind. Resuming at 08:45. Mean tau_225 about 0.45. Bilal takes over.
09:00-14:00; Bilal: Starting with mediocre weather (tau~0.5) and timeline variations above 50Jy! I've been looping around pointings and focus because of very poor weather, deep within clouds. At the end of the shift, moving on to calibrators to get some values. Instability going from 50Jy to 200Jy, easing down to 10Jy at the end of the shift.
15:00-21:00; Angel: tau_225 < 0.3 over the first half of the shift. Atmosphere was quite unstable till ~15:30 (p2p variations between +/-5 and 20 Jy/beam at 2 mm; slightly enhanced beam: e.g. FHWM 18.6 x 19.5 sq.-arcsec). After some stabilization, we got @calib_1scan on NGC7027 and CRL2688 (scans 202211s127 and s129), and @skydip (s132). Switching to project 160-16 (IMEGIN).
21:00-03:00; Aurore:
Nov 24th, Thursday
Nov 25th, Friday
Nov 26th, Saturday
Nov 27th, Sunday
Nov 28th, Monday