|
Size: 7672
Comment:
|
Size: 6568
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 19: | Line 19: |
| ||'''Scan'''||'''UT'''||'''Source'''||'''Command''' ||'''Az'''||'''El'''||'''corr_Az corr_El Diam Amp A'''||'''corr_Az corr_El Diam Amp B'''||'''Tau'''|| '''Comment''' || || 60 || 16h17 || Mars || Track || 207 || 23 || | |-| | || | |-| | || 0.2 || || || 61 || 16h30 || Mars || OTF_geomfast || 209 || 22 || | |-| | || | |-| | || 0.22 || 420"x 220" (step 6") in 36 subscans x 14 s = 9+3 ~= 12 min || || 62 || 16h47 || Neptune || Track || 144 || 33 || | |-| | || | |-| | || 0.20 || || || 63 || 16h49 || Neptune || OTF_geomfast || 145 || 34 || | |-| | || | |-| | || 0.20 || || || 64 || 17h05 || Neptune || OTF_2x2 || 149 || 35 || | |-| | || | |-| | || 0.20 || || || 65 || 17h23 || DIY-Tip || DIY-Tip || || || | |-| | || | |-| | || 0.20 || Hans test of Sky dip with tune|| || 66 || 17h || DIY || DIY || || || | |-| | || | |-| | || 0.20 || Hans test of tune|| || 67 || 17h || DIY-Tip || DIY-Tip || || || | |-| | || | |-| | || 0.20 || Hans test of Sky dip with tune|| || 68 || 17h51 || Uranus || Track || 120 || 35 || | |-| | || | |-| | || 0.10 || || || 70 || 17h58 || Uranus || OTF_geometry || 121 || 36 || | |-| | || | |-| | || 0.12 || stopped because there were tunnings durin the scan|| || 71 || 18h02 || Uranus || OTF_geometry || 122 || 37 || | |-| | || | |-| | || 0.12 || 300"x 220" (step 4") in 56 subscans x 20 s = 19+3 ~= 22 min.|| || 72 || 18h35 || Uranus || OTF_geometry || 122 || 37 || | |-| | || | |-| | || 0.12 || redo because telescope stuck at middle of scan 71|| || 73 || 18h39 || Uranus || OTF_geometry || 122 || 37 || | |-| | || | |-| | || 0.12 || telescope stopped again, impossible to move it, AS investigate|| || 74 || 19h15 || Uranus || OTF_geometry || 122 || 37 || | |-| | || | |-| | || 0.12 || AS solved the problem || || 75 || 19h25 || Uranus || OTF_geom_below70degEl || 145 || 49 || | |-| | || | |-| | || 0.12 || try a fast geom 35"/s, 420" large Az base, 4" El step || || 76 || 19h40 || Uranus || OTF_geom_below70degEl || 145 || 49 || | |-| | || | |-| | || 0.11 || same as above || || 77 || 20h || Uranus || Cross || 160 || 52 || | |-| | || | |-| | || 0.12 || Cross scan to determine Nastmyth pointing offset || || 78 || 20h30 || Uranus || OTF_2x2 || 169 || 53 || | |-| | || | |-| | || 0.12 || small OTF to accumulate statistics while Nicolas work on the cross || || || 20h40 || || || || || | |-| | || | |-| | || || Optimize radio alignment moving M5 micrometric screws, minimize background => gain 2K || || 79 || 20h56 || Uranus || Cross || 160 || 52 || | |-| | || | |-| | || 0.12 || found -3 3 offset on scan 77, but redo with 0 0 since M5 has moved || || 80 || 21h07 || Uranus || Cross || 160 || 52 || | |-| | || | |-| | || 0.12 || with pointing offset3 3 to check Nicolas calculation || || 81 || 21h11 || Uranus || Cross || 160 || 52 || | |-| | || | |-| | || 0.12 || redo same, high sky noise on previous scan || || 82 || 21h19 || Uranus || Cross || 160 || 52 || | |-| | || | |-| | || 0.12 || do a 2nd one to check stability || || 83 || 21h27 || Uranus || Cross || 160 || 52 || | |-| | || | |-| | || 0.12 || set pointing 6 6 || || 84 || 21h27 || Uranus || Cross || 160 || 52 || | |-| | || | |-| | || 0.12 || set pointing 8.64 10.67 => pixel 453 2mm should be at center => it works || || 85 || 21h37 || Uranus || Focus 2 || 160 || 52 || | |-| | || | |-| | || 0.12 || test a focus (procedure to reduce it not ready, but needed for the test) || || 86 || 21h47 || 0316+413 = 3C84 || Track || 69 || 65 || | |-| | || | |-| | || 0.12 || start accumulate stat on pointing || || 87 || 21h50 || 0316+413 = 3C84 || Cross || 69 || 65 || | |-| | || | |-| | || 0.12 || remark: focus not reduced but had 17" FWHM on 2mm crosses => should be correct for 1st iteration on pointing || || 88 || 21h53 || 0528+134 || Track || 38 || 116 || | |-| | || | |-| | || 0.1 || || || 89 || 21h56 || 0528+134 || Cross || 38 || 116 || | |-| | || | |-| | || 0.1 || || || 90 || 21h58 || 0528+134 || Cross || 38 || 116 || | |-| | || | |-| | || 0.1 || redo: source too weak on 1st cross profile || || 91 || 22h00 || 0235+164 || Track || 65 || 140 || | |-| | || | |-| | || 0.1 || || || 92 || 22h03 || 0235+164 || Cross || 65 || 140 || | |-| | || | |-| | || 0.1 || || || 93 || 22h05 || 2251+158 = 3C454.3 || Track || 250 || 48 || | |-| | || | |-| | || 0.07 || || || 94 || 22h14 || 2251+158 = 3C454.3 || Cross || 250 || 48 || | |-| | || | |-| | || 0.07 || acquisition crashed || || 95 || 22h17 || 2251+158 = 3C454.3 || Cross || 250 || 48 || | |-| | || | |-| | || 0.07 || redo || || 96 || 22h20 || Uranus || Track || 215 || 48 || | |-| | || | |-| | || 0.07 || Goal: redo an OTF geometry since we moved M5 || || 97 || 22h23 || Uranus || Cross || 215 || 48 || | |-| | || | |-| | || 0.07 || take the occasion to use as pointing || || 98 || 22h26 || Uranus || Focus || 215 || 48 || | |-| | || | |-| | || 0.07 || take the occasion to have a 2nd focus scan for Nicolas || || 99 || 22h28 || Uranus || OTF_geom_below70degEl || 215 || 48 || | |-| | || | |-| | || 0.07 || geometry || || 100 || 22h44 || Uranus || OTF_geom_below70degEl || 222 || 45 || | |-| | || | |-| | || 0.07 || geometry || |
||'''Scan'''||'''UT'''||'''Source'''||'''Command''' ||'''Az'''||'''El'''||'''Pointing X, Y, Focus'''||'''Tau'''|| '''Comment''' || || 60 || 16h17 || Mars || Track || 207 || 23 || || 0.2 || || || 61 || 16h30 || Mars || OTF_geomfast || 209 || 22 || || 0.22 || 420"x 220" (step 6") in 36 subscans x 14 s = 9+3 ~= 12 min || || 62 || 16h47 || Neptune || Track || 144 || 33 || || 0.20 || || || 63 || 16h49 || Neptune || OTF_geomfast || 145 || 34 || || 0.20 || || || 64 || 17h05 || Neptune || OTF_2x2 || 149 || 35 || || 0.20 || || || 65 || 17h23 || DIY-Tip || DIY-Tip || || || || 0.20 || Hans test of Sky dip with tune|| || 66 || 17h || DIY || DIY || || || || 0.20 || Hans test of tune|| || 67 || 17h || DIY-Tip || DIY-Tip || || || || 0.20 || Hans test of Sky dip with tune|| || 68 || 17h51 || Uranus || Track || 120 || 35 || || 0.10 || || || 70 || 17h58 || Uranus || OTF_geometry || 121 || 36 || || 0.12 || stopped because there were tunnings durin the scan|| || 71 || 18h02 || Uranus || OTF_geometry || 122 || 37 || || 0.12 || 300"x 220" (step 4") in 56 subscans x 20 s = 19+3 ~= 22 min.|| || 72 || 18h35 || Uranus || OTF_geometry || 122 || 37 || || 0.12 || redo because telescope stuck at middle of scan 71|| || 73 || 18h39 || Uranus || OTF_geometry || 122 || 37 || || 0.12 || telescope stopped again, impossible to move it, AS investigate|| || 74 || 19h15 || Uranus || OTF_geometry || 122 || 37 || || 0.12 || AS solved the problem || || 75 || 19h25 || Uranus || OTF_geom_below70degEl || 145 || 49 || || 0.12 || try a fast geom 35"/s, 420" large Az base, 4" El step || || 76 || 19h40 || Uranus || OTF_geom_below70degEl || 145 || 49 || || 0.11 || same as above || || 77 || 20h || Uranus || Cross || 160 || 52 || || | |-| | || 0.12 || Cross scan to determine Nastmyth pointing offset || || 78 || 20h30 || Uranus || OTF_2x2 || 169 || 53 || || | |-| | || 0.12 || small OTF to accumulate statistics while Nicolas work on the cross || || || 20h40 || || || || || | |-| || || Optimize radio alignment moving M5 micrometric screws, minimize background => gain 2K || || 79 || 20h56 || Uranus || Cross || 160 || 52 || || | |-| | || 0.12 || found -3 3 offset on scan 77, but redo with 0 0 since M5 has moved || || 80 || 21h07 || Uranus || Cross || 160 || 52 || || | |-| | || 0.12 || with pointing offset3 3 to check Nicolas calculation || || 81 || 21h11 || Uranus || Cross || 160 || 52 || || | |-| | || 0.12 || redo same, high sky noise on previous scan || || 82 || 21h19 || Uranus || Cross || 160 || 52 || || | |-| | || 0.12 || do a 2nd one to check stability || || 83 || 21h27 || Uranus || Cross || 160 || 52 || || | |-| | || 0.12 || set pointing 6 6 || || 84 || 21h27 || Uranus || Cross || 160 || 52 || || | |-| | || 0.12 || set pointing 8.64 10.67 => pixel 453 2mm should be at center => it works || || 85 || 21h37 || Uranus || Focus 2 || 160 || 52 || || 0.12 || test a focus (procedure to reduce it not ready, but needed for the test) || || 86 || 21h47 || 0316+413 = 3C84 || Track || 69 || 65 || || 0.12 || start accumulate stat on pointing || || 87 || 21h50 || 0316+413 = 3C84 || Cross || 69 || 65 || || 0.12 || remark: focus not reduced but had 17" FWHM on 2mm crosses => should be correct for 1st iteration on pointing || || 88 || 21h53 || 0528+134 || Track || 38 || 116 || || 0.1 || || || 89 || 21h56 || 0528+134 || Cross || 38 || 116 || || 0.1 || || || 90 || 21h58 || 0528+134 || Cross || 38 || 116 || || 0.1 || redo: source too weak on 1st cross profile || || 91 || 22h00 || 0235+164 || Track || 65 || 140 || || 0.1 || || || 92 || 22h03 || 0235+164 || Cross || 65 || 140 || || 0.1 || || || 93 || 22h05 || 2251+158 = 3C454.3 || Track || 250 || 48 || || 0.07 || || || 94 || 22h14 || 2251+158 = 3C454.3 || Cross || 250 || 48 || || 0.07 || acquisition crashed || || 95 || 22h17 || 2251+158 = 3C454.3 || Cross || 250 || 48 || || 0.07 || redo || || 96 || 22h20 || Uranus || Track || 215 || 48 || || 0.07 || Goal: redo an OTF geometry since we moved M5 || || 97 || 22h23 || Uranus || Cross || 215 || 48 || || 0.07 || take the occasion to use as pointing || || 98 || 22h26 || Uranus || Focus || 215 || 48 || || 0.07 || take the occasion to have a 2nd focus scan for Nicolas || || 99 || 22h28 || Uranus || OTF_geom_below70degEl || 215 || 48 || || 0.07 || geometry || || 100 || 22h44 || Uranus || OTF_geom_below70degEl || 222 || 45 || || 0.07 || geometry || |
NIKA November 2012 S1
Back to list of day to day logbook of observations
2012-11-15
- Cryostat Temperature: 150 +/- 0.02 mK (regulated with power 50uW), looks to be a better compromise between 2mm array and 1mm array optimal temperature.
Arrays status tonight: 126 pixels 2mm - good noise; 90 pixels 1mm noise 2x optimal (limited number of pixels and excess noise due to cold amplifier saturation --> -62dBm per KID instead of -50dBm).
Nasmyth offsets : 0, 0
Set pointing : 0, 0
Set Focus : -2.40 mm
Quick description of the session: Test the Pako sequences, data flows, and generation of IMBFITS. Start observing procedures described in ListOfAstroTarget2012N5.
- At 20h40 UT: the sky was stable enough to check the alignment radiometrically by measuring the background on the sky and finding the minimum (spill over the primary) by moving M5; conclusion: we were slightly misaligned previously, with the new position of M5 we gained ~2K on the background.
Scan |
UT |
Source |
Command |
Az |
El |
Pointing X, Y, Focus |
Tau |
Comment |
|
60 |
16h17 |
Mars |
Track |
207 |
23 |
|
0.2 |
|
|
61 |
16h30 |
Mars |
OTF_geomfast |
209 |
22 |
|
0.22 |
420"x 220" (step 6") in 36 subscans x 14 s = 9+3 ~= 12 min |
|
62 |
16h47 |
Neptune |
Track |
144 |
33 |
|
0.20 |
|
|
63 |
16h49 |
Neptune |
OTF_geomfast |
145 |
34 |
|
0.20 |
|
|
64 |
17h05 |
Neptune |
OTF_2x2 |
149 |
35 |
|
0.20 |
|
|
65 |
17h23 |
DIY-Tip |
DIY-Tip |
|
|
|
0.20 |
Hans test of Sky dip with tune |
|
66 |
17h |
DIY |
DIY |
|
|
|
0.20 |
Hans test of tune |
|
67 |
17h |
DIY-Tip |
DIY-Tip |
|
|
|
0.20 |
Hans test of Sky dip with tune |
|
68 |
17h51 |
Uranus |
Track |
120 |
35 |
|
0.10 |
|
|
70 |
17h58 |
Uranus |
OTF_geometry |
121 |
36 |
|
0.12 |
stopped because there were tunnings durin the scan |
|
71 |
18h02 |
Uranus |
OTF_geometry |
122 |
37 |
|
0.12 |
300"x 220" (step 4") in 56 subscans x 20 s = 19+3 ~= 22 min. |
|
72 |
18h35 |
Uranus |
OTF_geometry |
122 |
37 |
|
0.12 |
redo because telescope stuck at middle of scan 71 |
|
73 |
18h39 |
Uranus |
OTF_geometry |
122 |
37 |
|
0.12 |
telescope stopped again, impossible to move it, AS investigate |
|
74 |
19h15 |
Uranus |
OTF_geometry |
122 |
37 |
|
0.12 |
AS solved the problem |
|
75 |
19h25 |
Uranus |
OTF_geom_below70degEl |
145 |
49 |
|
0.12 |
try a fast geom 35"/s, 420" large Az base, 4" El step |
|
76 |
19h40 |
Uranus |
OTF_geom_below70degEl |
145 |
49 |
|
0.11 |
same as above |
|
77 |
20h |
Uranus |
Cross |
160 |
52 |
|
| |-| | |
0.12 |
Cross scan to determine Nastmyth pointing offset |
78 |
20h30 |
Uranus |
OTF_2x2 |
169 |
53 |
|
| |-| | |
0.12 |
small OTF to accumulate statistics while Nicolas work on the cross |
|
20h40 |
|
|
|
|
| |-| |
|
Optimize radio alignment moving M5 micrometric screws, minimize background => gain 2K |
|
79 |
20h56 |
Uranus |
Cross |
160 |
52 |
|
| |-| | |
0.12 |
found -3 3 offset on scan 77, but redo with 0 0 since M5 has moved |
80 |
21h07 |
Uranus |
Cross |
160 |
52 |
|
| |-| | |
0.12 |
with pointing offset3 3 to check Nicolas calculation |
81 |
21h11 |
Uranus |
Cross |
160 |
52 |
|
| |-| | |
0.12 |
redo same, high sky noise on previous scan |
82 |
21h19 |
Uranus |
Cross |
160 |
52 |
|
| |-| | |
0.12 |
do a 2nd one to check stability |
83 |
21h27 |
Uranus |
Cross |
160 |
52 |
|
| |-| | |
0.12 |
set pointing 6 6 |
84 |
21h27 |
Uranus |
Cross |
160 |
52 |
|
| |-| | |
0.12 |
set pointing 8.64 10.67 => pixel 453 2mm should be at center => it works |
85 |
21h37 |
Uranus |
Focus 2 |
160 |
52 |
|
0.12 |
test a focus (procedure to reduce it not ready, but needed for the test) |
|
86 |
21h47 |
0316+413 = 3C84 |
Track |
69 |
65 |
|
0.12 |
start accumulate stat on pointing |
|
87 |
21h50 |
0316+413 = 3C84 |
Cross |
69 |
65 |
|
0.12 |
remark: focus not reduced but had 17" FWHM on 2mm crosses => should be correct for 1st iteration on pointing |
|
88 |
21h53 |
0528+134 |
Track |
38 |
116 |
|
0.1 |
|
|
89 |
21h56 |
0528+134 |
Cross |
38 |
116 |
|
0.1 |
|
|
90 |
21h58 |
0528+134 |
Cross |
38 |
116 |
|
0.1 |
redo: source too weak on 1st cross profile |
|
91 |
22h00 |
0235+164 |
Track |
65 |
140 |
|
0.1 |
|
|
92 |
22h03 |
0235+164 |
Cross |
65 |
140 |
|
0.1 |
|
|
93 |
22h05 |
2251+158 = 3C454.3 |
Track |
250 |
48 |
|
0.07 |
|
|
94 |
22h14 |
2251+158 = 3C454.3 |
Cross |
250 |
48 |
|
0.07 |
acquisition crashed |
|
95 |
22h17 |
2251+158 = 3C454.3 |
Cross |
250 |
48 |
|
0.07 |
redo |
|
96 |
22h20 |
Uranus |
Track |
215 |
48 |
|
0.07 |
Goal: redo an OTF geometry since we moved M5 |
|
97 |
22h23 |
Uranus |
Cross |
215 |
48 |
|
0.07 |
take the occasion to use as pointing |
|
98 |
22h26 |
Uranus |
Focus |
215 |
48 |
|
0.07 |
take the occasion to have a 2nd focus scan for Nicolas |
|
99 |
22h28 |
Uranus |
OTF_geom_below70degEl |
215 |
48 |
|
0.07 |
geometry |
|
100 |
22h44 |
Uranus |
OTF_geom_below70degEl |
222 |
45 |
|
0.07 |
geometry |