NK2014_Jan24 - www.iram.es Main Wiki

NIKA, January 24th, 2014 / S5

2014-01-24

We use both the manual log below and the tapas database that automatically fills scans table with the scan informations.
So please login with the t21 acount and its usual password (durc***9) to the TAPAS database.
For now the TAPAS is not fully filled in real time, but completed with all the scans everyday by Pablo on the morning following the observations. So we keep a manual log below, but in a simplified table with the comments and only the most useful scan info.

Programm for today:

We start with the polariser mounted and running.
Skydip.
Focus and Beam maps on Uranus. Centered on the refence detector: #494 of the 2mm array (#5 of the 1mm array is very close to it).
Polar Lissajous on several quasars
Finish polar session at sunset with beam map on Uranus and skydip.
Dismount polariser just after sunset.
Beam map on Uranus
Resume pointing session
Beam map on Uranus or a bright quasar.
Integration on a very weak source to measure the noise.

Remark for NIKA staff: Good data are on RAW_X9

OFFSET -37 -30 /sys Nasmyth => select detector 494 as reference

Scan	UT	Source	Command	Pointing X,Y, Focus	Comment
182	15h34	DIY-Tip	skydip_up	0 0, -1.4	OFFSET -37 -30 /sys Nasmyth
183	15h45	Uranus	track	0 0, -1.4	Tau 0.3
184	15h47	Uranus	pointliss_pol	0 0, -1.4	we see Uranus well only at 1mm, very faint at 2mm ?!
185	15h59	Uranus	pointliss_pol	0 0, -1.4	Uranus very faint on both bands !!
186	16h06	Uranus	otf5x5_pol	0 0, -1.4	check if pb due to scan type...
187	16h16	Uranus	pointliss_pol	0 0, -1.4	rotating hwp stoppted: it works => pb due to processing of lockin
188	16h30	Uranus	cross	0 0, -1.4	rotating hwp restarted: same pb as with pointliss. 1mm say pointing 0 3.4
189	16h30	Uranus	focusp	0 3.4, -1.4	hwp runing, take scan for offline test once lockin fixed
190-191	16h50	Uranus	focusliss	0 3.4, -1.4	hwp runing, take scan for offline test once lockin fixed canceled, hwp stopped during 2nd scan
192-196	16h54	Uranus	focusliss	0 3.4, -1.4	hwp runing, take scan for offline test once lockin fixed, work OK at 1mm -> should set focus -1.2
197	17h03	Uranus	focusp	0 3.4, -1.4	hwp stopped, should set focus -1.4 at 1mm, -1.0 at 2mm -> keep best at 1mm
198	17h07	Uranus	cross	0.7 3.4, -1.4	hwp stopped, should set pointing 0.7 4.3
199	17h14	Uranus	otfgeom_pol	0 3.4, -1.4	hwp runing, canceled started oft5x5_pol instead of otfgeom_pol
200	17h14	Uranus	otfgeom_pol	0 3.4, -1.4	hwp runing,