NIKA October 12th, 2015 / S4
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2015-10-12
Following not updated
.Cryostat Temperature: 170mK cooling down slowly Modulation frequency: 10kHz 1mm, 5kHz 2mm Opacity is measured with the new taumeter at 225 GHz Nasmyth offsets : 0, 0 Set Focus : we start at -2mm (not at all optimised, first task is try to improve on this!) Quick description of the session: Test the Pako sequences and data flows.
Data Repository: /home/nika2/NIKA/Data/run13_X/scan24_X
Scan |
UT |
Source |
Command |
Az |
El |
Pointing X, Y, Focus |
Tau225 |
Comment |
12 |
12h10m |
Mars |
Track |
240 |
46 |
0,0,-1.3 |
0.3 |
going on source, checking that tuning is ok... |
13-17 |
12h14m |
Mars |
Focuslissold |
240 |
45 |
0,0, (-1.3 -1.9 -2.5 -0.7 -0.1) |
0.25 |
start with a focuslissold : pb, no good data (disk not mounted) |
18-22 |
12h14m |
Mars |
Focuslissold |
240 |
45 |
0,0, (-1.3 -1.9 -2.5 -0.7 -0.1) |
0.25 |
no subscan gt 0 and very small data recorded ? |
23 |
12h14m |
Mars |
pointingcross |
240 |
45 |
0,0, -1.3 |
0.25 |
ditto |
24 |
12h14m |
Mars |
pointingcross |
240 |
45 |
0,0, -1.3 |
0.25 |
ditto |
30 |
13h08m |
Mars |
pointingcross |
240 |
45 |
0,0, -1.3 |
0.25 |
ditto |
31 |
13h08m |
Mars |
pointingcross |
240 |
45 |
0,0, -1.3 |
0.25 |
Ok, data are finally coming! Alain repaired a problem in the C read_data procedure as well as a bug in the tuning. Great! |
32-36 |
13h30m |
Mars |
focuslissold |
258 |
30 |
0,0, -1.3 |
0.3 |
Focus seems better towards high values.. |
37 |
13h40m |
Mars |
focuslissold |
258 |
30 |
0,0, 0 |
0.3 |
Canceled! Doesn't like to have focus set to 0... |
38-42 |
13h43m |
Mars |
focuslissold |
258 |
28.5 |
0,0, 0.1 |
0.3 |
New focus procedure centered on 0.1 |
43 |
13h53m |
Mars |
focusliss |
258 |
26 |
0,0, 0.1 |
0.3 |
Seems the focus is ok around 0.1! We see a nice parabola. Going on to try a geometry |
44 |
13h59m |
Mars |
otfgeom |
258 |
25 |
0,0, 0.1 |
0.3 |
First we try a small geometry of 240"x240" to verify everything is ok. |
45 |
14h13m |
Mars |
beammap (part1) |
258 |
22 |
0,0, 0.1 |
0.4 |
We try a full beammap. Sadly tau is increasing and the elevetion of Mars is now 22. We'll see! |
46 |
14h28m |
Mars |
beammap (part2) |
258 |
~19 |
0,0, 0.1 |
0.5 |
|
47 |
14h43m |
Mars |
beammap (part3) |
268 |
16 (!!) |
0,0, 0.1 |
0.65 |
Weather getting worse again.. |