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Daily Reports (2025/11/11-18, NIKA2 run 76, Cryo run 88)

Observers on-site: Maite, Mairi, Victor and Hamza safe at the telescope.

Operators: Pedro (daytime) and Sergio (night). Angel around.

Times below in LT (UT+1h), unless otherwise is specified.

Preparatory notes

Please, remember to use the focus value of Ar1 (roughly Ar2 + 0.65 mm, but use directly the focus Ar1 monitor if possible).

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 are taken:

• Beam maps (99 sub-scans)
  Scan Nr	Target	Focus	Notes

November 11th, 2025, Tuesday

• Focus sequences
  Scan nr	Target	Ar2	Ar1	Ar3	Polarized?	Notes
  138-142	MWC349	--	0.87	1.1	Yes	Custom script. Marginal fitting for ar2.

Maite (15:30-XX): NIKA2 cryo in good shape after cool-down. HWP checked with Dave. Starting system-check with NIKA2 (Blue-Pill checking asked by Jean). Clear skies, mild wind. Opacity tau_225GHz ~ 0.2 and rising. BluePill tests (new version) was OK. Rolling back to the previous version. We have some problems with homology. Pointing corrections far from the expected values. Fixed by Pedro. DAQ restarted with bad KIDs (ar1, 2, 3): 15, 7, 37. Quite stable. Starting with @calib_1scan on MW349, NGC7027, CRL2688.