November 11th 2013, Alain Benoit, Martino Calvo and Andrea Catalano come to the 30m to install, cool down and testing the NIKA prototype.
12-13 November 2013: cooling down, HWP Modulator installation at the pupil (120mm from the entrance lens of the cryostat)
14 November 2013: OTF geometries on Mars and Uranus. Check of the focal plane geometry. First light of NIKA prototype with polarisation facilities.
15 November 2013: Cryostat back to 300K: 3He-4He mix recovery, heating trap. Polarisation facilities dismantling. Back to Granada.
STATUS
Cryostat Temperature: 150mK (set by temperature control).
Arrays status: 128 pixels 2mm - <1Hz/sqrtHz noise; 201 pixels 1mm about 10Hz/sqrtHz noise
Modulation frequency: 8kHz 1mm, 4kHz 2mm
OBSERVATIONS Log
Opacity is measurd with the taumeter at 225 GHz
p2cor : 0
p7cor : 0
initial Focus : -2.40 mm
Scan |
UT |
Source |
Command |
Az |
El |
Pointing X, Y, Focus |
Tau225 |
Comment |
15 |
04h39 |
Mars |
Track |
|
|
0 , 0 , -2.4 |
0.15 |
|
16 |
04h45 |
Mars |
OTF_Geometry |
|
|
0 , 0 , -2.4 |
0.15 |
First map for choosing the reference pixels |
17-21 |
04h58-05h04 |
Mars |
Focus_Liss |
|
|
0, 0, -2.4 |
0.15 |
|
22 |
05h05 |
Mars |
Focus |
|
|
0, 0, -2.4 |
0.15 |
|
23 |
05h47 |
Mars |
OTF_Geometry |
|
|
0, 0, -2.4 |
0.15 |
Tuning working during the map |
211-218 |
21h34-21h57 |
Uranus |
Track 300 300 |
|
|
0, 0, -2.4 |
0.00001 |
|
220-224 |
22h01-22h08 |
Uranus |
Focus_Liss |
|
|
0, 0, -2.4 |
0.00001 |
optimal focus probably over the used range |