Diff for "NK2012_S4" - www.iram.es Main Wiki

Differences between revisions 35 and 38 (spanning 3 versions)

NK2012_S4

20120603

Nasmyth offsets : 0, 0

Set pointing : 24 9

Set Focus : -1.3 mm

df (Frequency modulation is 10kHz)

Cryostat cold at 95 mK.

New configuration of resonances for both arrays. (Pixel numdet 127@1mm could now be pixel 120+18, 7@2mm should still be 7)

Base frequencies changed to 1.322000 @2mm, 1.957680 @1mm

Track means automatic retuning of resonances

Scan	UT	Source	Command .....	Az	El	PointX, Y, Focus	Tau	Comment
127	14h07	Mercury	Track tsub 30			24 9 -1.3	0.438	Very cloudy
128	14h18	Mercury	OTF fastgeom	240	69		0.247	LO freq changed by 190kHz upward from closed camera
129	14h	Mercury	Track	240	69		0.139	OK
130	14h	Mercury	Track	240	69
131	14h40	Mercury	Cross	250	63		0.215
132	14h51	Mercury	Cross	250	63		0.266
133	14h56	Mercury	Cross	250	63	37.5 2.7	0.188	Very fluctuating scan
134	15h08	Mercury	Cross	257	57		0.148	tau not reliable, humidity = 75%
135	15h18	Mercury	Focus 2/nsub 6	259	56	30.2 7.7 -1.3
136	15h18	Mercury	track
137	15h25	Mercury	OTF fastgeom	260	54	30.2 7.7 -1.3	0.142
138	15h37	Mercury	track /tsub 300	262	52		0.205	Noise measurement
139	15h45	Mercury	Focus 2/nsub 6	259	56	30.2 7.7 -0.7	0.172
140	15h48	Mercury	Focus 2/nsub 6	259	56	30.2 7.7 -1.7	0.195	best focus found near -1.2
141	16h02	Mercury	OTF fastgeom	259	56	30.2 7.7 -0.5	0.173	defocused map
142	16h20	Mercury	OTF fastgeom	269	44	30.2 7.7 -2.2	0.170	defocused map (subscan 29 pb of pointing interpol?)
143	16h41	Mercury	Focus 2/nsub 6	273	39	30.2 7.7 -1.2	0.123	defocused map
144	16h44	Mercury	Track /tsub 300	274	38	30.2 7.7 -1.2		Noise measurement
145	16h44	Mercury	Cross	273	39	30.2 7.7 -1.2
146	16h53	Mars	Track 300 300 /tsub 30			30.2 7.7 -1.2		Retune
147	17h03	Mars	Cross	140	53	30.2 7.7 -1.2	0.079
148	17h06	Mars	Cross	142	54	25.0 15.1 -1.2	0.079
149	17h09	Mars	Focus	142	54	28.0 9.1 -1.2	0.079
150	17h14	Mars	Focus	145	55	28.0 9.1 -0.53	0.079
151	17h21	Mars	Cross	151	55	28.0 9.1 -0.64	0.097	Recover the same pointing. OK!
152	17h25	Mars	OTF fastgeom	151	55		0.095
153	17h37	Mars	track	151	55		0.179
154	17h21	Mars	Cross	151	55
155	17h48	Mars	Crossplateau	159	58			Large and fast cross 480arcsec
156	17h54	Mars	Focus	161	58	28.0 9.1 -0.64		Undetermined focus
157	18h02	Mars	Focus	165	58	28.0 9.1 -0.64
158	18h08	Mars	Crossplateau(3crosses)	165	58			Power from 3 to 2dB 1.957710@1mm
159	18h13	Mars	Track 2min	170	59			for Noise with same settings
160	18h20	Mars	Crossplateau(3crosses)	174	58		0.037!	Power back to 3dB, f=1.322190@2mm, 1.957800@1mm
161	18h13	Mars	Track 2min	170	59			for Noise with same settings
162	18h47	Mars	Crossplateau(3crosses)	178	59		0.065	One tone only KA007(nd7,rz8), KB005 (nd126,rz7)
163	18h52	Mars	Track 2min	190	59			for Noise with same settings
164	19h15	Mars	Crossplateau(3crosses)		57		0.040	All tones back after much retuning LO shifted by -20@2mm,-30kHz@1mm wrt nominal (last cross had a retuning)
165	19h20	Mars	Cross	203	57			All is nominal

-  ⇤ ← Revision 35 as of 2012-06-03 19:15:35 → 
  Size: 6366
  Editor: NikaBolometer
  Comment:
+   ← Revision 38 as of 2012-06-03 19:22:47 → ⇥
  Size: 6373
  Editor: NikaBolometer
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 60:
-||   164...    ||  18h47   ||  Mars       || Crossplateau(3crosses)||  178   ||   59   ||                     ||     0.065    ||  All tones back after much retuning LO shifted by -20@2mm,-30kHz@1mm wrt nominal ||
||   165...    ||  18h52   ||  Mars       || Track 2min            ||  190   ||   59   ||                     ||              ||  for Noise with same settings ||
+||   164    ||  19h15   ||  Mars       || Crossplateau(3crosses)||        ||   57   ||                     ||     0.040    ||  All tones back after much retuning LO shifted by -20@2mm,-30kHz@1mm wrt nominal (last cross had a retuning)||
||   165    ||  19h20   ||  Mars       || Cross                 ||  203   ||   57   ||                     ||              ||  All is nominal ||