Daily Reports (2026/10/13-20, NIKA2 run 81, Cryo run 93)
Observers on-site: Remi Adam, Dana Alina, Golshan Ejlali, Wonj Kim,
AoD: Ste B.
Operators: Kike (day), Mario (night)
Shifts:
4 a.m. to 10 a.m. (LT): Dana
10 a.m. to 4:00 p.m. (LT): Wonju
4:00 p.m. to 10 p.m. (LT): Remi
10 p.m. to 4 a.m. (LT): Golshan
Important
Focus offsets shall be measured on Ar1
Pointing offsets shall be measured on Ar2
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.
Book-keeping of important scans
We ask you to please keep track of focus sequences (as much as possible) and beam maps (always). Thanks.
Focus sequences
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
20261014s44-48
Uranus
2.07
1.42
1.45
no
tau~0.48, starting NIKA2, initial guess Ar1 1.5 mm, interestingly all three Ar2 parabolas agree and seem to point to where the Ar2 beam is round! Running another focus sequence centered on Ar2...
49-53
Uranus
1.73
out
out
no
starting at 2.07 mm (to check Ar2), beam on best Ar2 focus is elongated again (checked on pointing)
56-60
Uranus
out
1.35
1.38
no
refocus on Ar1 again, start at 1.4 mm
Beam maps
Similarly, if any beam maps (total power) are taken:
Beam maps (99 sub-scans)
Scan Nr
Target
Focus
Notes
October 13th, Tuesday
10:30 LT: Dana, Golshan, Wonju and Stefano arrived at the telescope. Remi is here since last week. First briefing about safety and rules.
14:00-16:00 LT, All together.
- Maintenance time
- Briefing to decide the shifts
- explanations to the observers and refreshing of NIKA2 basics (incl. daily reports, pools page, Tapas filling, typical NIKA2-pol session, priorities, pointing on Ar2, focus on Ar1, book-keeping of focus sequences, etc...)
16:00-22:00 LT, Remi.
- @17:15 we try with EMIR (030-26), but the clouds are too thick. @18:30, the weather is improving and we try again, but it is still not sufficient.
- after another couple of attempts, finally @19:00 LT the sky permits to observe 030-26 (EMIR bkp). Observing setup-1 of G49.49-0.39 and G49.00-0.30
22:00-04:00 LT, Golshan.
- I continue with EMIR all night long. Projects 030-26 and 026-26
October 14th, Wednesday
4:00-10:00 LT, Dana + Stefano.
- we take over at 4 a.m. and continue with EMIR: 025-2
- @6 LT tau(225) is approaching 0.4. We switch to NIKA2. We activate all PIIC monitors, etc. Total power 23 Hz for now. Lost KIDs 43/6/49
10:00-16:00 LT, Wonju.
16:00-22:00 LT, Remi.
22:00-04:00 LT, Golshan.
October 15th, Thursday
4:00-10:00 LT, Dana.
10:00-16:00 LT, Wonju.
16:00-22:00 LT, Remi.
22:00-04:00 LT, Golshan.
October 16th, Friday
4:00-10:00 LT, Dana.
10:00-16:00 LT, Wonju.
16:00-22:00 LT, Remi.
22:00-04:00 LT, Golshan.
October 17th, Saturday
4:00-10:00 LT, Dana.
10:00-16:00 LT, Wonju.
16:00-22:00 LT, Remi.
22:00-04:00 LT, Golshan.
October 18th, Sunday
4:00-10:00 LT, Dana.
10:00-16:00 LT, Wonju.
16:00-22:00 LT, Remi.
22:00-04:00 LT, Golshan.
October 19th, Monday
4:00-10:00 LT, Dana.
10:00-16:00 LT, Wonju.
16:00-22:00 LT, Remi.
22:00-04:00 LT, Golshan.
October 20th, Tuesday
4:00-10:00 LT, Dana.
10:00-16:00 LT, Wonju.
16:00-22:00 LT, Remi.
22:00-04:00 LT, Golshan.