|
Size: 2461
Comment:
|
Size: 2469
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 17: | Line 17: |
| ~20:45-03:00; Alex : continuing on 137-21 / WB89-380 ; nikaw-21 / @skydip + focus on 0355+508 ; (1min46s between the end of scan and the start of PIIC processing) 137-21 / WB89-399 | ~20:45-03:00; Alex : continuing on 137-21 / WB89-380 ; nikaw-21 / @skydip + focus on 0355+508 ; (1min46s between the end of "@nkpoint f" and the start of PIIC processing) 137-21 / WB89-399 |
Daily Reports
Contents
Jan 10th, Monday
~19:00-22:00; Angel: we took advantage of technical time (T06-21) yielded by Manuel Castillo for NIKA2 general checks and calibrations. Acquisition restarted at ~19:10 after cooling down checks by Dave John and Santiago Navarro. Tau(225 GHz) about 0.25, and quite a stable atmosphere with baseline variations between 1 and 3 Jy/beam (2 mm) during this special shift. After checking the right imbfits file creation, we pointed and focused on Uranus. We got FWHMs 17.2"x17.8" (2 mm); 11.0"x11.6" (1 mm); the antenna seems to be a bit unrelaxed according to the maps. Meanwhile, we checked pointing corrections in the ~150 < Az. < 300 deg and ~20 < El. < 65 deg. ranges. Mean corrections -from TAPAS- obtained are 5.6 +/- 2.7 arcsec in Az., 3.2 +/- 2.3 arcsec in El., and -0.6 +/- 0.6 mm for focus (stable and close to the expected values after the intervention of PT100 sensors by Salvador Sánchez in the afternoon). Pointing and focus correction on NGC7027. A set of calib_1scan maps were obtained on that source (20220110s181), MWC349 (s182), and CRL2688 (s183). Very stable at the end of the shift. Coming back to Uranus. Resonances were reworked before pointing and a new focus correction. Beam map (h option) on Uranus (s198).
Jan 11th, Tuesday
[AB] Provisional note: The parameters of a pointing model based on the idem session of early December will be installed by Manuel asap. On the other hand, during the maintenance slot, the telescope engineers have checked in deep the temperature sensors of the antenna back-structure. In the past week, the automatic compensation of temperature gradients was turned off several days due to sensor bad readings and the observers had to increase the frequency of pointing and focus corrections (see the AoD report of Gabriel Paubert). In principle, the system should work appropriately. Otherwise, I will ask you for increasing the frequency of such corrections.
16:00-21:00; Ángel, Matt:
~20:45-03:00; Alex : continuing on 137-21 / WB89-380 ; nikaw-21 / @skydip + focus on 0355+508 ; (1min46s between the end of "@nkpoint f" and the start of PIIC processing) 137-21 / WB89-399
Jan 12th, Wednesday
Jan 13th, Thursday
Jan 14th, Friday
Jan 15th, Saturday
Jan 16th, Sunday
Jan 17th, Monday