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== Preparation notes for the re-commissioning campaign (cryo run 93, NIKA2 81th; last update: 2026/09/22): ==

 * A report about the second intervention on dichroic and Ar2 shims to try compensating 2mm-1mm focus difference can be seen [[https://publicwiki.iram.es/NIKA2%2B2ndDicIntervention|here]]. The dichroic was flipped and some shims were introduced on Array 2 mount for compensating the expected distortion of the former after the cool-down. Arrays 1 and 3 were not touched during the cryostat intervention. Therefore, it is likely that only the reference pixel and scale of Matrix 2 have changed. Similar focus corrections are expected for all three arrays.

 * First NIKA2+ tests will be performed during sparsed observing slots on week 40 (cf. project T21-26 [[https://oms.iram.fr/?mmspv=-showpublicschedulingperiod/_=-O-35511|here]]). NIKA2 account t22 should be used.

 * A new sweep for all arrays would be prepared (with the support of Martino and Alessandro) on Tue. 29th after 13:30 CEST (TBC). We would start pointing/focus using the DAFs corresponding to cryo run 92, likely using the Array 1 data as a driver in the worst case.

== PIIC DAFs status ==

 * DAFs for the current official cryo run (92) were installed on 2026/03/24 by Stefano Berta. When setting up the PIIC environmental variables with ''gagpiic'' and starting PIIC, the environment variable $MOPSIC_DAFS points by default to /sw/gildas/mopsic/dafs.

== Main Goals ==

 * Preliminary verification of the system in the sky, obtaining the first pointing/focus corrections and quantifying the first focus deviations (hopefully very small).
 * Prepare a new sweep (cryo run 93)
 * Determination of the optimal Z-axis focus position and setting the focus routine accordingly.
 * Produce high-quality DAF/RPP and Kidpars.
 * Produce new NEFDs, in total power and polarization (if possible) and providing a new estimate of the fraction of valid KIDs per array.
 * Refine pointing offsets.

== Observation priorities ==

 * Obtaining high-quality beam maps (at least 2) in total power/polarimetry.
 * Getting calib_1scan maps on Uranus, Mars and secondary flux standards/QSOs (at different elevations, day/night) in total power/polarimetry + skydips.
 * Performing a pointing session
 * Getting a small deep field centered on a moderately bright source (a few hours) in total power and a bunch of polarimetry scans (Crab).
 * Carrying out pending tests for projects 092-26 (N2EDF; high scan speed) and 093-26, both in total power.