Diff for "NK2013_Jun15" - www.iram.es Main Wiki

Differences between revisions 1 and 8 (spanning 7 versions)

Describe NK2013_Jun15 here.

Back to list of day to day logbook of observations

2013-06-15

Cryostat Temperature: 220mK after recycling yesterday .
Arrays status today: 192 pixels 1mm ; 128 pixels 2mm
Modulation frequency: 8kHz 1mm, 4kHz 2mm

Opacity is measured with the new taumeter at 225 GHz

For start:

Working with the new pointing model (rms went from 5 to 2 arcsec for yesterday pointing session)
Nasmyth offset 28, 28 implemented in the pointing model
offset 0 0 /system nasmyth
Quick description of the session 14h30 to 2h UT
Calibration: 3C84, 3C279 Pointing, focus, otfgeom.
Secondary calibrators
Venus/Saturn sidelobe measurements
Bright extended source(s): Crab, NGC2023, OrionLBS
Skydip
Arp220
Faint sources to measure noise figures (20-40 mJy range at 1mm)
SZ on RXJ

Scan	UT	Source	Command	Az	El	Pointing X, Y, Focus	Tau225	Pointing offset Found	Comment
89	14h29	3C84	Track	297	38	0, 0, -2.4	0.65		tuning the resonances
90	14h46	3C84	cross	298	35	0, 0, -2.4		10, -2
91	14h50	3C84	pointliss	298	34	0, 0, -2.4	0.72	7, -3
92	14h57	3C84	pointliss	298	34	7, -3,-2.4	0.72	6, -3	set focus -2.0
93	14h59	3C84	focusp2	299	33	6, -3,-2.4			set focus -1.8
94-98	15h05	3C84	focusliss	299	32	6, -3,-2.4	0.66		set focus -1.0
99	15h16	3C84	focusp	300	30	6, -3,-2.4
100	15h21	WOH	track	300	30	6, -3,-1
101	15h23	WOH	faintliss	326	30	6, -3,-1		3,1;3,1 Fl 4.5-2.5 uncorr
102	15h32	Mars	track	274	33	6, -3, -1	0.614
103	15h46	Mars	cross	276	30	6, -3, -1	0.809	3, -5
104	15h49	Mars	focusp	276	30	3, -5, -1		-1?	not convincing
105-109	15h58	Mars	focusliss	277	28	3, -5, -1		FW very large, still 1mm is optimum	anomalous refraction?
110	16h10	Mars	otfgeom	277	28	1, 1, -1

-  ⇤ ← Revision 1 as of 2013-06-15 14:57:08 → 
  Size: 1487
  Editor: NikaBolometer
  Comment:
+   ← Revision 8 as of 2013-06-15 16:12:15 → ⇥
  Size: 2625
  Editor: NikaBolometer
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 2:
-Describe NK2013_Jun13 here.
-Line 9:
+Line 5:
-== 2013-06-13 ==
+== 2013-06-15 ==
-Line 11:
+Line 7:
- .Cryostat Temperature: 220mK .
+ .Cryostat Temperature: 220mK after recycling yesterday .
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+Line 17:
-Set pointing : 0, 0

NEW and definitive pointing model determined from yesterday

Set Focus : -1 mm
-Line 40:
+Line 30:
-||'''Scan'''||'''UT'''||'''Source'''||'''Command''' ||'''Az'''||'''El'''||'''Pointing X, Y, Focus''' ||'''Tau225'''||'''Found'''||  '''Comment'''||
||     89  ||  14h29  ||  3C84      || Track     || 297 || 38 ||  0, 0, -2.4 ||0.646 ||           ||tuning the resonances || 
||     90  ||  14h46  ||  3C84      || cross     || 298 || 35 ||  0, 0, -2.4 ||      || 10, -2 ||   || 
||     91  ||  14h50  ||  3C84      || pointliss || 298 || 34 ||  0, 0, -2.4 ||0.72  || 7,  -3 ||   ||
+||'''Scan'''||'''UT'''||'''Source'''||'''Command''' ||'''Az'''||'''El'''||'''Pointing X, Y, Focus''' ||'''Tau225'''||'''Pointing offset Found'''||  '''Comment'''||
||     89  ||  14h29  ||  3C84      || Track     || 297 || 38 ||  0, 0, -2.4 ||0.65 ||        ||tuning the resonances ||
||     90  ||  14h46  ||  3C84      || cross     || 298 || 35 ||  0, 0, -2.4 ||     || 10, -2 ||   ||
||     91  ||  14h50  ||  3C84      || pointliss || 298 || 34 ||  0, 0, -2.4 ||0.72 || 7,  -3 ||   ||
||     92  ||  14h57  ||  3C84      || pointliss || 298 || 34 ||  7, -3,-2.4 ||0.72 || 6,  -3 || set focus -2.0  ||
||     93  ||  14h59  ||  3C84      || focusp2   || 299 || 33 ||  6, -3,-2.4 ||     ||        || set focus -1.8  ||
||  94-98  ||  15h05  ||  3C84      || focusliss || 299 || 32 ||  6, -3,-2.4 ||0.66 ||        || set focus -1.0  ||
||     99  ||  15h16  ||  3C84      || focusp    || 300 || 30 ||  6, -3,-2.4 ||  ||        ||  ||
||     100 ||  15h21  ||  WOH       || track     || 300 || 30 ||  6, -3,-1   ||  ||        ||  ||
||     101 ||  15h23  ||  WOH       || faintliss || 326 || 30 ||  6, -3,-1   ||  ||  3,1;3,1 Fl 4.5-2.5 uncorr      ||  ||
||     102 ||  15h32  ||  Mars      || track     || 274 || 33 ||  6, -3, -1   || 0.614 ||        ||  ||
||     103 ||  15h46  ||  Mars      || cross     || 276 || 30 ||  6, -3, -1   || 0.809 || 3, -5   ||  ||
||     104 ||  15h49  ||  Mars      || focusp    || 276 || 30 ||  3, -5, -1   ||   ||  -1?  || not convincing ||
|| 105-109 ||  15h58  ||  Mars      || focusliss || 277 || 28 ||  3, -5, -1   ||   || FW very large, still 1mm is optimum  || anomalous refraction? ||
||     110 ||  16h10  ||  Mars      || otfgeom   || 277 || 28 ||  1,  1, -1   ||   ||    ||  ||