Daily Reports
Contents
2024 Feb. 20th, Tuesday
Ioannis, Kaiyi, Hervé, Philippe, and Stefano arrived at the telescope.
Maintenance: the telescope and NIKA2 are healthy. The HWP has been tested and rotates correctly. All is ready for a great week 
16:00-20:00; Angel, Stefano, Ioannis, Hervé, Kaiyi: Tuning after maintenance was very good (bad kids 13/2/16). It was done at high elevation of ~70 deg. Then we did pointing and focus on the quasar 0316+413. The beam size for several pointings remained ~ 17.7 x 18.5" at 2mm. The small ellipticity seemed to remain also after focus corrections. Atmospheric stability was ~ 2-5 Jy/beam for the 2mm data. Around 17:00 we started a training session of NIKA2 observations for Hervé and Kaiyi. Then started observations of project 150-23 and did also a skydip [scan 20240220s82]. After initial pointing, we loaded an OTF map on source "id307" but we had to stop the observations after only one scan was completed (around 19:30) because the wind velocity exceeded the limit (reached up to ~ 14 m/s). Tracking deterioration was also visible up to the point that we stopped.
Input by Hervé: The shift was mostly dedicated to the observation of source id307 of the project 150-23. We also performed a 6 minutes skydip [20240220s82]. The beam was checked two times in a nearby target (source 0716+714), yielding a quite stable beam of ~ 17.5*19 arcsec. Observations started with good conditions (stability characterised by RMS of about +/- 1-2 Jy). Unfortunately, the shift closed at about 19:00 due to wind ~14 m.s-1. In the end, only the first scan (1/4) of the first of two rounds that were scheduled in the observation script was performed.
20:00-02:00; Kaiyi: