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NIKA January 22th, 2014 / S3

Back to list of day to day logbook of observations

2014-01-22

Now we will use the tapas database that automatically fills scans table with the informations we were filling by hand untill now.

So please login with the t21 acount and its usual password (durc***9) to the TAPAS database.

=> Actually only Lissajous and and skydip scans appear on TAPA, all crosses, focus, otfmap are missing ! So continue with manual log until this problem on TAPAS is solved.

Programm for today:

Check pointing and Nasmyth offset after re-alignment with the laser. Conclusion from yesterday: we don't have a reliable way to optimise the radio alignment, so we will rely only on the laser alignment, which seem very close to optimal according to 1st conclusions from yesterday.
Focus and Beam maps (standard + Lissajou).
Pointing session
Polariser on, and test observations with polariser: beam maps (+pointing and focus of course) first on planet then on a polarised source.

Scan	UT	Source	Command	Az	El	Pointing X,Y, Focus	Tau225	Comment
10	14h00	Uranus	Track -200 -200	123	40	0,0,0.0 -2.4	0.15	Track60
11	14h03	Uranus	cross	123	40	0,0,0.0	0.15	offset 0 0
12	14h04	Uranus	stopped	123	40	0,0,0.0	0.15
13	14h04	Uranus	Cross	123	40	0,0,0.0	0.15	offset -40 10
14-18	14h11	Uranus	pointliss	123	40	0,0,0.0	0.15	tuning not working between subscans
19	14h11	Uranus	otfgeom	123	40	0,0,0.0
20	14h11	Diy-TIP	skydip_up	124	40	0,0,0.0
22	14h18	Uranus	track -200 -200	127	42	0,0,0.0
23	14h19	Uranus	focusp	128	42	0,0,0.0		set focus -1.8
24	14h22	Uranus	focusp	128	44	0,0,0.0 -1.8
25-29	14h26	Uranus	focusliss	129	44	0,0,0.0		set focus -1.4
30-34	14h39	Uranus	focusliss	133	46	0,0,0.0 -1.4
35	14h48	Uranus	focusp	136	47	0,0,0.0
36	14h52	Uranus	focusp	137	47	0,0,0.0		set focus -1.5
37	14h54	Uranus	pointliss	138	47	0,0,0.0 -1.5		offset -70 10
38	14h59	Uranus	pointliss	139	48	0,0,0.0		offset -10 10
39	15h00	Uranus	pointliss	140	49	0,0,0.0		offset -40 -20
40	15h03	Uranus	pointliss	141	49	0,0,0.0		offset -40 40
41	15h06	Uranus	pointliss	142	49	0,0,0.0		offset -40 -10
42	15h08	Uranus	pointliss	142	49	0,0,0.0		set pointing 10 15
43	15h11	Uranus	pointliss	142	49	10 , 15 -1.5
44	15h11	Uranus	cross	144	50	10 , 15 -1.5
45	15h17	Uranus	pointliss	145	51	10 , 15 -1.5		a lot of snow
46	15h26	Uranus	pointliss	149	52	10 , 15 -1.5		a lot of snow
47	15h33	diy-tip	skydip_up	149	52	10 , 15 -1.5		a lot of snow, fog
48	15h52	Uranus	otf5x5	159	54	10 , 15 -1.5		modulator on, no hwp, polarizer on (cancelled)
49	15h55	Uranus	otf5x5_pol	159	54	10 , 15 -1.5		modulator on, no hwp, polarizer on at 0 deg
50	16h09	Uranus	otf5x5_pol/otf5x5 (TBC)	159	54	10 , 15 -1.5		modulator on, no hwp, polarizer on at 0 deg (cancelled tbc)
51	16h10	Uranus	otf5x5_pol/otf5x5 (TBC)	159	54	10 , 15 -1.5		modulator on, no hwp, polarizer on at 0 deg
52	16h19	Uranus	otf5x5_half	159	54	10 , 15 -1.5		modulator on, no hwp, polarizer on at 60 deg
53	16h24	Uranus	track	159	54	10 , 15 -1.5		modulator on, no hwp, polarizer on at 120 deg
54	16h26	Uranus	otf5x5_half	159	54	10 , 15 -1.5		modulator on, no hwp, polarizer on at 120 deg
55	16h32	Uranus	otf5x5_half	159	54	10 , 15 -1.5		modul on, polar on at 120 deg (redo to check pako script). stop obs bad weather
56	20h32	Uranus	track	250	28	10 , 15 -1.5		resume obs, with deicing on, so useful just to test polar aquisition
57	20h32	Uranus	cross	250	28	10 , 15 -1.5
58	20h32	Uranus	pointliss	250	28	10 , 15 -1.5		antenna not thermalized just testing codes
59	20h32	Uranus	cross	250	28	10 , 15 -1.5		antenna not thermalized just testing codes
60	20h32	Uranus	track	250	28	10 , 15 -1.5		antenna not thermalized just testing codes
61	20h32	Uranus	track	250	28	10 , 15 -1.5		antenna not thermalized just testing codes
62	20h32	Uranus	cross	250	28	10 , 15 -1.5		antenna not thermalized just testing codes
64	20h32	Uranus	otf5x5_half	250	28	10 , 15 -1.5		(polarizer 0deg + HWP immobile) antenna not thermalized just testing codes
65	20h32	Uranus	cross	250	28	10 , 15 -1.5		(polarizer 0deg + HWP immobile) antenna not thermalized just testing codes
66	20h32	Uranus	cross	250	28	10 , 15 -1.5		(polarizer 0deg + HWP rotating) antenna not thermalized just testing codes
67	20h32	Uranus	otf5x5_half	250	20	10 , 15 -1.5		(polarizer 0deg + HWP rotating) antenna not thermalized just testing codes
68	20h32	Uranus	skydip_up	250	20	10 , 15 -1.5		cancelled (forgot to specify azimuth in script telescope was going too far)
69	20h32	Uranus	track	250	20	10 , 15 -1.5		back on uranus
70	21h30	Uranus	track	250	20	10 , 15 -1.5		decide to turn polariser to minimize parasit background (reflection from cabin)