Daily Reports
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Special session after the new sweep (Oct 16-17; MC) inside a heterodyne Pool (Manager: Mónica Rodríguez). Times referred to LT.
Oct 18th, Monday
04h30; Ángel: Opacity (tau[225 GHz]) above 0.5, with some spikes up to 0.95 during the shift. First pointing and focus on Mars (low altitude). Beam sizes a bit broadened: ~14.5", 18.5", 14.3"; ToD +/-2 Jy/b, rms ~146 mJy/b (2mm). Focus and pointing on 1226+023 and then on 1156+295 (close to the science target). Monitoring opacity and stability before starting science observations, looking at the beam geometry too. At 23:30 it was decided to start the observations of UDG584 field (E03-20). A total of 7 repetitions (24 min. each) were gathered, starting with fluctuations in time of +/-2 Jy/b at 2 mm and +/-5 Jy/b at 1 mm. Mean rms of ~55 mJy/b at 2 mm. Stopped at 03:20 when the target was close to El.=30 deg. Then a skydip (s29) was tried: too large variation of NIKA2 taus, barely valid. Secondary flux standards MWC349 (s37) and NGC7027 (s39) observed with calib_1scan routine (beam sizes: 12.8", 17.5", 12.9"). EMIR Pool observations continued after 04:30.