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| Deletions are marked like this. | Additions are marked like this. |
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| || 148-152 || 14h57 || Mars || focusliss || 268 || 40 || -10, -5, -0.5 || || focus determination with 5 lissajous scans foc=-0.5,-1.1,-1.7,0.1,0.7 || | || 148-152 || 14h57 || Mars || focusliss || 268 || 40 || -10, -5, -0.5 || || focus determination with 5 lissajous scans foc=-0.5,-1.1,-1.7,0.1,0.7 || |
Describe NK2013_Jun12 here. NIKA November 2012 S2
Back to list of day to day logbook of observations
2013-06-12
- Cryostat Temperature: 216mK (naturally set by settings of 3He circulation [no heater] trying to mitigate oscillation due to leak).
- Arrays status tonight: pixels 2mm - xxx noise; XX pixels 1mm xxx noise (to be determined)
Modulation frequency: 8kHz 1mm, 4kHz 2mm
Opacity is measured with the new taumeter at 225 GHz
For start Nasmyth offsets : 28, 28
Set pointing : 0, 0
Set Focus : -2.40 mm
- Quick description of the session:
- Mars Pointing, focus, otfgeom.
- 4 sources at different elevation to check the nasmyth corrections. If ok, correct pointing model
- Mars, pointing focus, otfgeom
- Pointing session for 3h
- Mars OTFgeom at 3 foci, 5 lissajous focus, 6 lateral positions
- Secondary calibrators: pointing, otf_3x3, faintsourceLissajous
- skydip
- faint sources to finish for noise measurements
Scan |
UT |
Source |
Command |
Az |
El |
Pointing X, Y, Focus |
Tau225 |
Comment |
110 |
9h14 |
Mars |
Track |
111 |
61 |
0, 0, -2.4 |
0.824 |
nasxy=28,28 |
111 |
9h25 |
Mars |
cross |
114 |
61 |
0, 0, -2.4 |
|
nasxy=28,28 |
112 |
9h28 |
Mars |
cross |
115 |
62 |
-6, -2, -2.4 |
|
nasxy=28,28 |
113 |
9h36 |
Mars |
focus Totpow |
117 |
63 |
-2, -3, -2.4 |
0.856 |
quite close to the Sun nasxy=28,28 |
114 |
9h45 |
Mars |
focus Totpow |
120 |
65 |
-2, -3, -2.4 |
0.863 |
nasxy=28,28 |
115 |
9h50 |
Mars |
otf geom |
126 |
67 |
-2, -3, -2.4 |
0.863 |
nasxy=28,28 (focus could be -1.7 tbc |
116 |
10h02 |
3C111 |
cross |
80 |
78 |
-2, -3, -2.4 |
|
nasxy=28,28 (off found -4, -3 ok) |
117 |
10h12 |
3C454.3 |
cross |
269 |
27 |
-2, -3, -2.4 |
|
nasxy=28,28 resonances lost (fxd's fault) should do track first do not use |
118 |
10h30 |
3C454.3 |
cross |
269 |
27 |
-2, -3, -2.4 |
|
nasxy=28,28 difficult to point |
119 |
10h38 |
Mars |
track |
151 |
73 |
0, 0, -2.4 |
0.879 |
FROM NOW ON: nasxy=0,0 Second Pointing model (nas corrections included 28,28) |
120 |
10h51 |
Mars |
cross |
151 |
73 |
0, 0, -2.4 |
0.891 |
Found at 2mm: -3 -3 |
121 |
10h54 |
Mars |
cross |
162 |
74 |
-3, -3, -2.4 |
0.891 |
Found at 2mm: 0 -4 Some 2mm pixels (20) were missing in all previous scans |
122 |
11h04 |
Mars |
cross |
169 |
74 |
-3, -3, -2.4 |
|
-3 -3 are correct |
123 |
11h09 |
Mars |
focus |
169 |
74 |
-3, -3, -2.4 |
|
focus is not clear: try -1.4 and larger range +-2mm |
124 |
11h18 |
Mars |
focusp2 |
169 |
74 |
-3, -3, -1.4 |
|
focus at -1 seems ok |
125 |
11h18 |
Mars |
focusp |
169 |
74 |
-3, -3, -1. |
0.9 |
focus at -1 again (but difficult) |
126 |
11h29 |
Mars |
cross |
190 |
74 |
-3, -3, -1. |
0.98 |
gives -4, -1 |
127 |
11h31 |
Mars |
cross |
190 |
74 |
-3, -3, -1. |
|
gives -6, 0 |
128 |
11h36 |
Mars |
cross |
190 |
74 |
-5, -1, -1. |
|
gives -5, 0 |
129 |
11h44 |
0420-014 |
track |
192 |
50 |
-5, -1, -1. |
|
|
130 |
11h46 |
0420-014 |
cross |
192 |
51 |
-5, -1, -1. |
|
gives -7, ? |
131 |
11h50 |
0420-014 |
cross |
192 |
51 |
-5, -1, -1. |
|
gives ? too noisy (bad sky) |
132 |
11h52 |
0420-014 |
cross |
192 |
51 |
-5, -1, -1. |
|
gives too noisy |
133 |
11h55 |
3C111 |
track |
279 |
80 |
-5, -1, -1. |
|
|
134 |
12h00 |
3C111 |
cross |
279 |
79 |
-5, -1, -1. |
0.906 |
too noisy. Technical time to replace some spindle electronics 1/2h |
135 |
13h15 |
Mars |
track |
247 |
60 |
-5, -1, -1. |
0.849 |
resume observations : do focus activities |
136 |
13h24 |
Mars |
cross |
250 |
58 |
-5, -1, -1. |
0.894 |
found -8,-3; -7,-4 |
137 |
13h24 |
Mars |
cross |
250 |
58 |
-7, +4, -1. |
|
error on +4, found -9, -5 ; -8, -6 |
138 |
13h30 |
Mars |
cross |
250 |
57 |
-7, -4, -1. |
|
found -10, -3 ; -9, -4 |
139 |
13h34 |
Mars |
focus |
252 |
57 |
-9, -4, -1. |
|
found -0.9 ; -0.5 |
140 |
13h40 |
Mars |
focus |
254 |
55 |
-9, -4, -0.7 |
0.969 |
found -0.6 ; -0.4 |
141 |
13h46 |
Mars |
cross |
255 |
54 |
-9, -4, -0.5 |
|
found -11 -6 ; -10 -7 iffy |
142 |
13h49 |
Mars |
cross |
255 |
53 |
-10, -7, -0.5 |
|
found -9 -4 ; -8 -6 |
143 |
13h52 |
Mars |
otfgeom |
256 |
53 |
-10, -5, -0.5 |
|
ok but large fluctuations (some reso lost) |
|| 144 || 14h00|| Mars || point lissajous|| 260 || 49 || -10, -5, -0.5 || || 1 mn testing the procedure and ability to recover pointing || || 145 || 14h17|| Mars || Faint lissajous|| 260 || 49 || -10, -5, -0.5 || || same but 5 min testing the procedure and ability to recover pointing in hard weather || || 146 || 14h27|| Mars || otfgeom || 263 || 46 || -10, -5, -2 || || focal plane geom. out of focus || || 147 || 14h42|| Mars || otfgeom || 265 || 44 || -10, -5, +1 || || focal plane geom. out of focus || || 148-152 || 14h57 || Mars || focusliss || 268 || 40 || -10, -5, -0.5 || || focus determination with 5 lissajous scans foc=-0.5,-1.1,-1.7,0.1,0.7 ||