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| 03:00-09:00; Jean-François: clear sky, Tau_225 stable around 0.25, peak-to-peak fluctuations < 5Jy/b and rms=2-3Jy/b at 2mm all night. Project 192-16 on COSMOS for 3 hours (hit attenuation limit); 199-16 PSZ2G212 for 1.5 hours (i.e. 3rep) (hit attenuation limit) ; focus ; 169-22 GJ526North 1 hour ; focus ; start 160-16 NGC4254 and pass over to Lara. | 03:00-09:00; Jean-François: clear sky, Tau_225 stable around 0.25, peak-to-peak fluctuations < 5Jy/b and rms=2-3Jy/b at 2mm all night. Project 192-16 on COSMOS for 3 hours (hit attenuation limit); 199-16 PSZ2G212 for 1.5 hours (i.e. 3rep) (hit attenuation limit); focus; 169-22 GJ526North 1 hour; focus; start 160-16 NGC4254 and pass over to Lara. |
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| 09:00-15:00; Lara: three runs done for NGC4254 until 10:00. Clear sky, tau almost stable around 0.25, peak to peak fluctuations < +/- 6 Jy/b, rms < 2 Jy/b. After this moved to MWC349 for pointing, focus, calib_1scan + another calib_1scan on NGC7027. Then I did a skydip. At 11 some checkings with NIKA2 and EMIR where done for possible wifi contaminations. 13:35: cryostat intervened by Dave John and Alessandro Monfardini. P5 stabilised and 2mm pre-amplifier restarted. DAQ restarted at 14:00: bad KIDs: 54 (ar1), 9 (ar2), 65 (ar3). At 14:15 observations start again with pointing and focus on 2251+158. Start 160-16 NGC7331 after pointing on 2234+282. First run with velocity = 60, than changed to 45 since the elevation was ~ 75. Large value of p2p and high elevation: change to 159-22. | [AB: this morning Dave reported noticeable pressure oscillations (e.g. P101) relateed to the dilution circuit of the cryostat. T_MC has been below 175 mK until now. The problem has been tackled by Dave and Alessandro and was related to the heater in the instrument, after discarding that the pre-amplifiers act as 'heaters'] 09:00-15:00; Lara: three runs done for NGC4254 until 10:00. Clear sky, tau almost stable around 0.25, peak to peak fluctuations < +/- 6 Jy/b, rms < 2 Jy/b. After this moved to MWC349 for pointing, focus, calib_1scan + another calib_1scan on NGC7027. Then I did a skydip. At 11 some checkings with NIKA2 and EMIR were done for possible wifi contaminations. 13:35: cryostat intervened by Dave John and Alessandro Monfardini. P5 stabilised and 2mm pre-amplifier restarted. DAQ restarted at 14:00: bad KIDs: 54 (ar1), 9 (ar2), 65 (ar3). At 14:15 observations start again with pointing and focus on 2251+158. Start 160-16 NGC7331 after pointing on 2234+282. First run with velocity = 60, then changed to 45 since the elevation was ~ 75. A large value of p2p and high elevation: change to 159-22. 15:00-21:00; Angel: Opacity about 0.25-0.30 at the beginning of the shift. Evidence of instabilities in pointing and focus scans. No more targets are available for observation under these conditions at this time. Unfortunately, pressure oscillations appeared again, but this time they are apparently related to PT #2. Dave, Martino, and Alessandro are on this issue. Switching to EMIR backup programs at 17h (LT). NIKA2 was closed and the window was assured with Al tape by request. Continuing on backup project 125-22 (3 mm). NCS failure: VAC1 and VAC3 restarted; the first focus was canceled due to a problem with the AntennaMountDrive services. Resuming observations at 18:25 after the intervention of Joaquín and William. A total of 3 beta and 6 lambda maps (tile 3) on the G111 molecular cloud were obtained. |
Daily Reports
Contents
Jan. 10th, Tuesday
15:15-21:00; Miguel, Angel: Technical time (T06-22) scheduled up to Wed. 04:00 (LT). Checking interference spikes in EMIR data after asking CETURSA IT team for switching off suspicious Wi-Fi systems of the lift booths close to the telescope. In principle, no interference spikes were detected after ad-hoc technical observations. Tau_225GHz is about 0.25 and stable. Switching to NIKA2 DAQ started at 16:50; bad KIDS: 61 (ar1), 9 (ar2), 71 (ar3). Noise traces (on-sky) of ar2, ar1 and ar3 are given below. A quick pointing session (11 sources at 70 < Az. < 381 deg and 27 < El. < 69 deg) for refining corrections was carried out from 20:20 to 21:50.
21:00-03:00; Manuel, Angel: Opacity keeps stable (tau_225GHz < 0.25). Pointing session was finished. Resulting statistics: <pAz.> = -0.46 +/- 1.38 arcsec, <pEl.> = 6.25 +/- 0.64 arcsec. Continued with a calib_1scan on Uranus (20220110s245), a skydip (s246), and a calib_1scan on ALFORI (s249). Only the parameter P7 of the pointing model was corrected accordingly and checked before scan s257. Fairly stable after a brief opacity increase. Pointing and focus on Uranus. Beam map on Uranus (s258). Starting science observations: project 105-22; one rep. (35 min) on B213-C6; project 122-16 (GASTON), 2 reps. on B213E_N; project 192-16 (N2CLS) started: 1 rep. on COSMOS field.
Jan. 11th, Wednesday
03:00-09:00; Jean-François: clear sky, Tau_225 stable around 0.25, peak-to-peak fluctuations < 5Jy/b and rms=2-3Jy/b at 2mm all night. Project 192-16 on COSMOS for 3 hours (hit attenuation limit); 199-16 PSZ2G212 for 1.5 hours (i.e. 3rep) (hit attenuation limit); focus; 169-22 GJ526North 1 hour; focus; start 160-16 NGC4254 and pass over to Lara.
[AB: this morning Dave reported noticeable pressure oscillations (e.g. P101) relateed to the dilution circuit of the cryostat. T_MC has been below 175 mK until now. The problem has been tackled by Dave and Alessandro and was related to the heater in the instrument, after discarding that the pre-amplifiers act as 'heaters']
09:00-15:00; Lara: three runs done for NGC4254 until 10:00. Clear sky, tau almost stable around 0.25, peak to peak fluctuations < +/- 6 Jy/b, rms < 2 Jy/b. After this moved to MWC349 for pointing, focus, calib_1scan + another calib_1scan on NGC7027. Then I did a skydip. At 11 some checkings with NIKA2 and EMIR were done for possible wifi contaminations. 13:35: cryostat intervened by Dave John and Alessandro Monfardini. P5 stabilised and 2mm pre-amplifier restarted. DAQ restarted at 14:00: bad KIDs: 54 (ar1), 9 (ar2), 65 (ar3). At 14:15 observations start again with pointing and focus on 2251+158. Start 160-16 NGC7331 after pointing on 2234+282. First run with velocity = 60, then changed to 45 since the elevation was ~ 75. A large value of p2p and high elevation: change to 159-22.
15:00-21:00; Angel: Opacity about 0.25-0.30 at the beginning of the shift. Evidence of instabilities in pointing and focus scans. No more targets are available for observation under these conditions at this time. Unfortunately, pressure oscillations appeared again, but this time they are apparently related to PT #2. Dave, Martino, and Alessandro are on this issue. Switching to EMIR backup programs at 17h (LT). NIKA2 was closed and the window was assured with Al tape by request. Continuing on backup project 125-22 (3 mm). NCS failure: VAC1 and VAC3 restarted; the first focus was canceled due to a problem with the AntennaMountDrive services. Resuming observations at 18:25 after the intervention of Joaquín and William. A total of 3 beta and 6 lambda maps (tile 3) on the G111 molecular cloud were obtained.
Jan. 12th, Thursday
Jan. 13th, Friday
Jan. 14th, Saturday
Jan. 15th, Sunday
Jan. 16th, Monday