Diff for "NK2012_Nov4" - www.iram.es Main Wiki

Differences between revisions 18 and 19

NIKA November 2012 S4

Back to list of day to day logbook of observations

2012-11-18

Cryostat Temperature: 150 +/- 0.02 mK (regulated with power 50uW)
Arrays status tonight: 126 pixels 2mm - good noise; 8 pixels 1mm noise should be good (reduce the number of pixels so that total tones power below amplifier saturation).

Nasmyth offsets : 0, 0

Set pointing : 0, 0

Set Focus : -1.9 mm

Quick description of the session: Proceed with the observing procedures (see ListOfAstroTarget2012N5): geom, pointing cross, focus, etc. (e.g.check plateau on strong sources) then fainter and fainter sources to check sensitivity.

Scan	UT	Source	Command	Az	El	Pointing X, Y, Focus	Tau	Comment
12	16h11	Mars	Track 200 200	205	23	8.64 6.01 -1.9	0.3
13	16h20	Mars	OTF_geom_below70deg	208	22		0.3
14	16h45	Mars	OTF_geom_below70deg	212	20		0.3
15	16h58	2251+158 (3C454)	Track 200 200	115	53		0.3	resonances lost due to elevation going from 20 deg to 53 deg
16	16h59	2251+158 (3C454)	Track 200 200	115	53		0.3	retune resonances
17	17h00	2251+158 (3C454)	Track 200 200	115	53		0.3
18	17h01	2251+158 (3C454)	Cross	116	54		0.3	sky moved ? resonances lost during the scan
19	17h05	2251+158 (3C454)	Focus	116	54		0.3
20	17h14	2251+158 (3C454)	OTF_2x2	119	56		0.3
21	17h22	2251+158 (3C454)	Cross	122	57		0.3
21	17h22	2251+158 (3C454)	Focus	123	58		0.4
22	17h30	Uranus	Track 200 200	118	33		0.4	Alessandro thought we wanted to change source because of the bad Cross
23	17h31	?	Track 200 200	118	59		0.4
24	17h32	2251+158 (3C454)	Track 200 200	126	59		0.4
25	17h33	2251+158 (3C454)	Cross	126	59	8.73 11.79 -1.9	0.4
26	17h37	2251+158 (3C454)	Focus	127	59		0.4
27	17h45	2251+158 (3C454)	Focus	127	59	8.73 11.79 -1.63	0.4
28	18h01	IRC10420	Track 200 200	237	50		0.4
29	18h02	IRC10420	OTF_faint_Az	237	50		0.45
30	18h	IRC10420	OTF_faint_Az	239	50		0.45
31	18h	IRC10420	OTF_faint_El	240	49		0.45	looks like there was an error in the script DO NOT USE THIS SCAN
32	18h19	IRC10420	OTF_faint_Az	242	47		0.45
33	18h19	IRC10420	OTF_faint_Az	242	47		0.45
34	18h26	IRC10420	OTF_faint_El	242	46		0.45	Script corrected. PLEASE USE THIS SCAN
35	18hxx	IRC10420	OTF_faint_El	244	45		0.45
36	18h38	2013+370	track	279	66		0.45
37	18h39	2013+370	Cross	279	66		0.44	Found correction <1 arcsec new 8.47 11.09
38	18h39	2013+370	Cross	279	66	8.5 11.1 -1.63	0.44	To confirm correction
39	18h48	2013+370	Focus	280	64		0.44	found best focus -2.27 .. tbc
40	18h59	2013+370	Focus	280	62		0.50	found best focus -1.52 ??
41	19h06	2013+370	Focus	280	62		0.50	STOPPED. DO NO USE ME !!
42	19h07	2013+370	Focus	281	60	8.5 11.1 -1.52	0.48	find -1.61 but bad fit. Ze leave -1.52
43	19h13	MWC349	track	280	62		0.48
44	19h15	MWC349	OTF_faint_Az	280	62	8.5 11.1 -1.52	0.48
45	19h20	MWC349	OTF_faint_Az	288	62		0.48

-  ⇤ ← Revision 18 as of 2012-11-18 18:49:25 → 
  Size: 3926
  Editor: NikaBolometer
  Comment:
+   ← Revision 19 as of 2012-11-18 19:21:21 → ⇥
  Size: 4594
  Editor: NikaBolometer
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 47:
-||     39   ||  18h48 ||  2013+370|| Focus  || 280      || 64     ||  || 0.44 || ||
+||     39   ||  18h48 ||  2013+370|| Focus  || 280      || 64     ||  || 0.44 || found best focus -2.27 .. tbc ||
||     40   ||  18h59 ||  2013+370|| Focus  || 280      || 62     ||  || 0.50 || found best focus -1.52 ?? ||
||     41   ||  19h06 ||  2013+370|| Focus  || 280      || 62     ||  || 0.50 || STOPPED. DO NO USE ME !! ||
||     42   ||  19h07 ||  2013+370|| Focus  || 281      || 60     || 8.5 11.1 -1.52 || 0.48 ||find -1.61 but bad fit. Ze leave -1.52 ||
||     43   ||  19h13 ||  MWC349|| track  || 280      || 62     ||   || 0.48 || ||
||     44   ||  19h15 ||  MWC349|| OTF_faint_Az  || 280      || 62     || 8.5 11.1 -1.52  || 0.48 || ||
||     45   ||  19h20 ||  MWC349|| OTF_faint_Az  || 288      || 62     ||   || 0.48 || ||