Daily Reports (2025/12/9-16, NIKA2 run 77, Cryo run 89)
Observers on-site: Simon, Yiqing, Monica
Astronomer-of-Duty, Pool Manager: Angel Bongiovanni
Operators: Joaquin, Pedro
Please fill the Table with the Ar1,2,3 focus values as follows. At best, make one table per day.
Focus sequences
Scan nr
Target
Ar2
Ar1
Ar3
Polarized?
Notes
Similarly, if any beam maps (total power) are taken:
Beam maps (99 sub-scans)
Scan Nr
Target
Focus
Notes
Pool-Account usage: Accounting of observing times
Calibration observations like pointing, focus, and calib_1scan (the latter in case of NIKA2-Pol only, aimed at characterizing the instrumental polarization) which are conducted before and during project observations are part of the project time. Note that all proposals include such overheads in the time and sensitivity estimates. This holds for total power and polarimetry observations.
Other calibration observations which are important for all projects like beam maps, skydips, or calib_1scan for absolute flux calibration may be accounted under the pool account (nikaX-YY, where X = s,w and YY = year).
- When conditions are unstable and it is unclear whether project observations make sense at all, calibrations may be accounted to the pool account.
December 9th, 2025, Tuesday
Focus sequences
Scan nr
Target
Ar2
Ar1
Ar3
Polarized?
Notes
121 - 125
1641+399
...
0.93
1.13
No
Marginal fitting for Ar2
133 -137
2037+511
0.26
1.0
1.38
No
No so good for Ar3
153 - 157
Neptune
1.0
...
...
No
Bad fitting for Ar1 and Ar3. Using 1.6 as a guess focus. Repeat
158 - 162
Neptune
16:00 - 22.00 Monica: We started the observations , tau ~ 0.25 a bit unstable, no wind, very high clouds. DAQ started in total power. Bad kids (Ar1, Ar2, Ar3 / 8, 7, 29). After pointing and Focus calib_1scan in MWC349 (Scan 20251209s128) and NGC7027 (s130). Then skydip (s131). Then we move to project 152-25 (Science source WB89-152 ~ 70 min).