Describe NK2013_Jun15 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 14h30 to 2h UT
- Calibration: 3C84, 3C279 Pointing, focus, otfgeom.
- Secondary calibrators
- Venus/Saturn sidelobe measurements
- 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 |
Pointing offset Found |
Comment |
89 |
14h29 |
3C84 |
Track |
297 |
38 |
0, 0, -2.4 |
0.65 |
|
tuning the resonances |
90 |
14h46 |
3C84 |
cross |
298 |
35 |
0, 0, -2.4 |
|
10, -2 |
|
91 |
14h50 |
3C84 |
pointliss |
298 |
34 |
0, 0, -2.4 |
0.72 |
7, -3 |
|
92 |
14h57 |
3C84 |
pointliss |
298 |
34 |
7, -3,-2.4 |
0.72 |
6, -3 |
set focus -2.0 |
93 |
14h59 |
3C84 |
focusp2 |
299 |
33 |
6, -3,-2.4 |
|
|
set focus -1.8 |
94-98 |
15h05 |
3C84 |
focusliss |
299 |
32 |
6, -3,-2.4 |
0.66 |
|
set focus -1.0 |
99 |
15h16 |
3C84 |
focusp |
300 |
30 |
6, -3,-2.4 |
|
|
|
100 |
15h21 |
WOH |
track |
300 |
30 |
6, -3,-1 |
|
|
|
101 |
15h23 |
WOH |
faintliss |
326 |
30 |
6, -3,-1 |
|
|
|