NIKA2 run 6 26 October 2016
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2016-10-26
- Cryostat Temperature: 180mK (regulated with heater).
- Arrays status tonight: Array1 about 30 bad out of 1060, Array2 about 3 bad out of 580, Array3 about 30 bad out of 1045
- Noise seems fine: no appreciable PT effect
Tau is really very high: we start with the window on cryo and try to move the telescope around --> dark tests!
- Modulation of frequency: 4kHz for Array2, 8kHz for Array1 and 3
- Quick description of the session: just dark tests, a priori..
Scan |
UT |
Source |
Command |
Az |
El |
Pointing X, Y, Focus |
Tau225 |
Comment |
140 |
~ 16h |
Mars |
Track |
|
|
|
|
closed window, test data tranfert |
141 |
16h05 |
Mars |
Cross |
277.687 |
26.626 |
0.0 0.0 -2.4 |
0.862 |
opened window, test arrays frequencies |
142 |
16h30 |
Mars |
OTF_geom |
277 |
26.6 |
0.0 0.0 -2.4 |
0.85 |
Juan put Nasmyth offset to 0 in pointing model; this is our starting point before the session ; tuning during the scan |
143 |
16h34 |
Mars |
otf_geom |
281 |
20.6 |
0.0 0.0 -2.4 |
0.85 |
still tests and tunes on arrays (after scan), some resonances lost, auto tune was not on, find again by hand... |