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Size: 5819
Comment:
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Size: 6071
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 71: | Line 71: |
| || 162 || 17h16 || 3C279 || otfgeom || || || -8, -1, -1.6 || 0.892 || || cloudy but reso not lost || || 163 || 17h27 || 3C279 || faintliss || 137 || 37 || -8, -1, -1.6 || 0.860 || || || |
Describe NK2013_Jun13 here.
Back to list of day to day logbook of observations
2013-06-13
- Cryostat Temperature: 220mK .
- 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
Set pointing : 0, 0
NEW and definitive pointing model determined from yesterday
Set Focus : -1 mm
- Quick description of the session:
- Mars Pointing, focus, otfgeom.
- Secondary calibrators
- 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 |
Found |
Comment |
123 |
10h05 |
Mars |
Track |
133 |
69 |
0, 0, -2.4 |
0.84 |
|
tuning the KIDs, checking file transfer |
124 |
10h10 |
Mars |
Track |
133 |
69 |
0, 0, -2.4 |
0.84 |
|
|
125 |
10h19 |
Mars |
Track |
133 |
69 |
0, 0, -1 |
0.84 |
|
|
126 |
10h23 |
Mars |
Track |
139 |
71 |
0, 0, -1 |
0.84 |
|
|
127 |
10h26 |
Mars |
cross |
141 |
71 |
0, 0, -1 |
1.16 |
2mm -3 0 |
|
128 |
10h32 |
Mars |
pointliss |
|
|
-3, 0, -1 |
1.16 |
1 and 2mm -7 3 |
|
129 |
10h38 |
Mars |
cross |
149 |
73 |
-7, 3, -1 |
1.16 |
2mm -4,4 Map:-6,3 |
|
130 |
10h42 |
Mars |
pointliss |
152 |
73 |
-7, 3, -1 |
0.938 |
-2,2;-2,3 |
|
131 |
10h46 |
Mars |
pointliss |
154 |
73 |
-2, 3, -1 |
0.938 |
-5,-2;-5,-1 |
|
132 |
10h50 |
Mars |
pointliss |
|
|
-5, -1, -1 |
0.579 |
-8,6 |
sky is cloudy and noisy |
133 |
10h56 |
Mars |
pointliss |
163 |
74 |
-8, +6, -1 |
0.739 |
-5,-2;-5,-1 |
pointing keeps changing |
134 |
11h01 |
Mars |
faintliss |
167 |
74 |
-5, -1, -1 |
1.09 |
-6,2;-6,2 Fwhm 16.7,20 |
PSF spread is large |
135 |
11h09 |
Mars |
pointliss |
174 |
75 |
-6, +2, -1 |
1.09 |
-5,2;-5,2 Fwhm 15,19 |
|
136 |
11h16 |
Mars |
pointliss |
180 |
75 |
-6, +2, -1 |
1.09 |
-7,2;-6,2 Fwhm 16,20 |
|
137 |
11h20 |
Mars |
focusp2 |
184 |
75 |
-6, +2, -1 |
4?! |
-0.1?;-0.75 |
focus +-2mm Sky unstable at 1mmm |
138 |
11h45 |
Mars |
otfgeom |
205 |
73 |
-6, +2, -1 |
|
-7,4;-7,4 Fwhm 14.5 19.5 |
for lunch |
139 |
11h45 |
Mars |
otfgeom |
205 |
73 |
-6, +2, -1 |
|
|
cancelled. Scan never started. |
140 |
12h20 |
Mars |
otfgeom |
231 |
68 |
-6, +2, -1 |
|
|
stopped in the middle. Block in antenna |
141 |
12h48 |
Mars |
otfgeom |
231 |
68 |
-6, +2, -1 |
|
|
cancel |
142 |
13h03 |
Mars |
track |
244 |
62 |
-6, +2, -1 |
|
|
|
143 |
13h10 |
Mars |
otfgeom |
246 |
61 |
-6, +2, -1 |
|
|
many clouds resonances lost in the middle |
144 |
13h39 |
Mars |
track |
253 |
55 |
-6, +2, -1 |
|
|
resonances found by Nello |
145 |
13h41 |
Mars |
pointliss |
254 |
55 |
-6, +2, -1 |
|
0,9;-1,11 but uncertain |
|
146 |
13h44 |
Mars |
pointliss |
254 |
55 |
-2, +10, -1 |
0.841 |
-8,4 ? |
|
147 |
13h49 |
Mars |
pointliss |
256 |
54 |
-2, +10, -1 |
|
-8,2;-9,2 |
Went off resonance, sky so fluctuating |
148 |
14h04 |
Mars |
pointliss |
256 |
54 |
-9, +2, -1 |
|
-9,1;-9,1 |
lots of resonances lost |
149 |
14h08 |
Higelev |
track |
179.7 |
79.9 |
-9, +2, -1 |
|
|
Go to a stall position HO 180 80 and wait for an hour |
|
14h20 |
Higelev |
nothing |
179.7 |
79.9 |
-9, +2, -1 |
|
|
resonances OK, >14h42 no tuning |
150 |
16h32 |
3C279 |
track |
123 |
28 |
-9, +2, -1 |
|
|
resuming observations, sky a bit clearer |
151 |
16h32 |
3C279 |
pointliss |
|
|
-9, +2, -1 |
|
-8 0; -8 -1 |
not too far |
152 |
16h37 |
3C279 |
pointliss |
|
|
-8, 0, -1 |
|
-8 2; -8 0 |
ok |
153 |
16h42 |
3C279 |
cross |
|
|
-8, 0, -1 |
0.932 |
map -9 3;-9 1, X -9 2; -7 0 Fl 8,12Jy |
ok |
154 |
16h47 |
3C279 |
faintliss |
|
|
-8, 0, -1 |
0.84 |
-9 0;-10 1 |
|
155 |
16h55 |
3C279 |
focusp2 |
|
|
-9, 0, -1 |
|
-2?,-1~ |
+-2mm |
156-160 |
16h58 |
3C279 |
focusliss |
|
|
-9, 0, -1 |
0.914 |
-1.6 best trade-off |
-1,-1.6,-2.2,-0.4,0.2 |
161 |
17h12 |
3C279 |
pointliss |
|
|
-9, 0, -1.6 |
|
-8 -1;-8 -1 Fw15.7;19.8 Fl 11,12Jy |
|
162 |
17h16 |
3C279 |
otfgeom |
|
|
-8, -1, -1.6 |
0.892 |
|
cloudy but reso not lost |
163 |
17h27 |
3C279 |
faintliss |
137 |
37 |
-8, -1, -1.6 |
0.860 |
|
|