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NIKA November 2012 S5

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2012-11-19

Cryostat Temperature: 150 +/- 0.02 mK (regulated with power 50uW)
Arrays status tonight: (126 pixels 2mm, 90 pixels 1.25mm):

Plan for tonight (126 pixels 2mm, 90 pixels 1.25mm)

Pointing model was updated by Juan Penalver:

use 31 pointing values obtained yesterday
dispersion goes from 2.8 to 2.5 arcsec.
DeltaP1=-3.46+-0.72
DeltaP7=+1.88+-0.44

ATTENTION: Juan's model has been calculated using the relative pointing offsets measured during the pointing session thinking these was absolute offset. For example the 1st cross relative offsets are (-1.33;1.36) but the absolute ones are (8.47-1.33;11.09+1.36). Tomorrow Juan will implement a new pointing model based on the correct offsets. Note this misunderstanding explain why we found big offsets today on the pointings instead of values ~< 2 arcsec.

ATTENTION: At the beginning of the session we forgot to change the reference pixel (when we point a source it is centered on that pixel); so we used the pixel 454 of the 2mm array, but it has no 1mm counterpart, so none of the 1mm array pointing are usable ! Don' t forget to change the reference tomorrow; choose either pixel 432 of the 1mm array or pixel 33 of the 1mm array which are close to each other on the sky, or, pixel 414 of the 2mm array or pixel 8 of the 1mm array which are also close to each other on the sky, and in all cases they are all quite close from the center of the arrays.

Nasmyth offsets : 0, 0

Set pointing : 0, 0

Set Focus : -1.6 mm

Quick description of the session: see .Daily Report

Scan	UT	Source	Command	Az	El	Pointing X, Y, Focus	Tau	Comment
135	16h22	Neptune	Track 200 200	142	33	0 0 -1.6	0.89
136	16h24	Neptune	Cross	143	33	0 0 -1.6	0.89	correction found 6.82, 6.59
137	16h35	Neptune	Cross	146	34	6.82 6.59 -1.6	0.89	correction found NO FIT
138	16h41	Neptune	Cross	147	35	6.82 6.59 -1.6	0.37
139	16h49	Uranus	Track 200 200	111	28	6.82 6.59 -1.6	0.37
140	16h51	Uranus	Cross	111	28	6.82 6.59 -1.6	0.37	correction found (-0.04 4.07 )-> 6.76 10.76
141	17h00	Uranus	Cross	112	29	6.76 10.76 -1.6	0.45	correction found (-0.31 -3.36)-> 6.35 7.34
142	17h08	Uranus	Focus	114	31	6.8 7.34 -1.6	0.45	new focus found -1.91
143	17h20	Uranus	OTF_geom	114	31	6.37 7.34 -1.91	0.45
144	17h30	Uranus	Focus	120	35	6.37 7.34 -1.91	0.45	new focus found -1.7
145	17h54	Uranus	OTF_geom	125	39	6.37 7.34 -2.7	0.31	TEST FOCUS OFFSET -1mm
146	18h11	Uranus	OTF_geom	127	40	6.37 7.34 -0.7	0.31	TEST FOCUS OFFSET +1mm
147	18h30	K3-50A	Track	271	63	6.37 7.34 -1.7	0.44
148	18h32	K3-50A	Cross	272	62	6.37 7.34 -1.7	0.44	correction found -> 9.4 9.9
149	18h39	K3-50A	OTF_faint Az	273	61	9.4 9.9 -1.7	0.27
150	18h44	K3-50A	OTF_faint El	273	60	9.4 9.9 -1.7	0.27
151	18h53	W3OH	Track	394	46	9.4 9.9 -1.7	0.32
152	18h54	W3OH	Cross	394	47	9.4 9.9 -1.7	0.32	correction found -> 6 11
153	19h02	W3OH	OTF_faint Az	394	47	6 11 -1.7	0.28
154	19h07	W3OH	OTF_faint El	394	48	6 11 -1.7	0.25
155	19h15	MWC349	Track	288	62	6 11 -1.7	0.17 New value lambda, new tau meter
156	19h16	MWC349	Cross	288	61	6 11 -1.7	0.17	Correction found -> 9.0 10.5
157	19h29	MWC349	OTF_faint Az	288	59	9 10.5 -1.7	0.17
158	19h35	MWC349	OTF_faint El	288	58	9 10.5 -1.7	0.17
159	19h50	CRL618	Track	64	29	9 10.5 -1.7	0.18	pointing Secondary Calibrator
160	19h52	CRL618	Cross	65	30	9 10.5 -1.7	0.18	Source not found (unexplained)NO CORRECTION, IT DID NOT WORK !!!
161	20h05	FTtau	Track	81	31	9 10.5 -1.7	0.15
162	20h08	FTtau	OTF_faint Az	81	31	9 10.5 -1.7	0.15
163	20h12	FTtau	OTF_faint El	81	31	9 10.5 -1.7	0.15
164	20h16	FTtau	OTF_faint Az	81	31	9 10.5 -1.7	0.15
165	20h22	FTtau	OTF_faint El	81	31	9 10.5 -1.7	0.15
166	20h26	DRtau	Track	88	27	9 10.5 -1.7	0.18
167	20h27	DRtau	OTF_faint Az	88	27	9 10.5 -1.7	0.20
168	20h31	DRtau	OTF_faint El	89	28	9 10.5 -1.7	0.16
169	20h35	DRtau	OTF_faint Az	88	27	9 10.5 -1.7	0.16, old taumeter still around 0.30-0.35
170	20h40	DRtau	OTF_faint El	88	27	9 10.5 -1.7	0.14
171	20h47	0415+379	Track	70	45	9 10.5 -1.7	0.11 (0.24 old)
172	20h48	0415+379	Cross	70	45	9 10.5 -1.7	0.11 (0.24 old)	Correction found -> 7.5 11.2
173	20h50	GMaur	Track	88	27	7.5 11.2 -1.7	0.12 (0.25)
174	21h00	0420-014	Track	114	26	7.5 11.2 -1.7	0.14
175	21h02	0420-014	Cross	114	26	7.5 11.2 -1.7	0.14	Correction found -> 4.3 12.4
176	21h06	4C05.19	Track	110	34	4.3 12.4 -1.7	0.14
177	21h08	4C05.19	OTF_faint Az	110	34	4.3 12.4 -1.7	0.14
178	21h12	4C05.19	Track	110	34	4.3 12.4 -1.7	0.16 (0.30 old)
179	21h13	4C05.19	OTF_faint El	110	34	4.3 12.4 -1.7	0.
180	21h17	4C05.19	Track	110	34	4.3 12.4 -1.7	0.
181	21h18	4C05.19	OTF_faint Az	110	34	4.3 12.4 -1.7	0.16 (0.32)
182	21h23	4C05.19	Track	110	34	4.3 12.4 -1.7	0.
183	21h24	4C05.19	OTF_faint El	110	34	4.3 12.4 -1.7	0.
184	21h28	4C05.19	Track	110	34	4.3 12.4 -1.7	0.
185	21h29	4C05.19	OTF_faint Az	110	34	4.3 12.4 -1.7	0.
186	21h33	4C05.19	Track	110	34	4.3 12.4 -1.7	0.
187	21h35	4C05.19	OTF_faint El	110	34	4.3 12.4 -1.7	0.23 (0.28)
188	21h39	4C05.19	Track	118	40	4.3 12.4 -1.7	0.23 (0.28)
189	21h40	4C05.19	OTF_faint Az	118	40	4.3 12.4 -1.7	0.23 (0.28)
190	21h44	4C05.19	Track	110	34	4.3 12.4 -1.7	0.19 (0.29)
191	21h45	4C05.19	OTF_faint El	110	34	4.3 12.4 -1.7	0.19 (0.29)
192	21h50	0420-014	track	124	35	4.3 12.4 -1.7	0.19 (0.32)
193	21h55	0420-014	Cross	124	35	4.3 12.4 -1.7	0.19 (0.32)	set pointing 7.93 9.27 (both Nicolas and Mopsic)
194	22h05	0420-014	Focus	127	37	7.93 9.27 -1.7	0.19 (0.27)	found on Nicolas AND Mopsic -1.78 !!
195	22h10	Crab	track 600 600	90	38	7.93 9.27 -1.78	0.19 (0.32)
196	22h10	Crab	OTF_10x10FasterAz	90	38	7.93 9.27 -1.78	0.19 (0.32)
197	22h10	Crab	OTF_10x10FasterEl	90	38	7.93 9.27 -1.78	0.19 (0.32)
198	22h54	CRL618	Track	82	65	7.93 9.27 -1.78	0.2 (0.32)
199	22h56	CRL618	Cross	82	65	7.93 9.27 -1.78	0.2 (0.32)	source well observed (contradicts scan 160) with 3Jy at 1mm