2017-01-25.238 Uranus
0.129568
onTheFlyMap
2017-01-25T18:24:11
2017-01-25T18:25:12
214.176959
55.963226
0.0
0.7
-0.25
-1.3e+01
1.8e+01
✔ 29.8 MB
✔
@focusOTF-Y 0 : 4
2017-01-25.239 Uranus
0.129568
onTheFlyMap
2017-01-25T18:25:14
2017-01-25T18:26:13
214.596138
55.845163
0.0
1.4
-0.25
-1.3e+01
1.8e+01
✔ 29.6 MB
✔
@focusOTF-Y 0 : 5 => set focus 0 after looking at residual analysis
2017-01-25.240 Uranus
0.118335
onTheFlyMap
2017-01-25T18:29:41
2017-01-25T18:53:01
224.438443
52.492186
0.0
0.0
-0.85
-1.3e+01
1.8e+01
✔ 654.6 MB
✔
@beammap1scan99sub a (defocused: abs focus value is -0.25-0.60=-0.85)
2017-01-25.241 Uranus
0.136218
onTheFlyMap
2017-01-25T18:53:41
2017-01-25T19:16:49
231.863847
48.943328
0.0
0.0
0.35
-1.3e+01
1.8e+01
✔ 648.3 MB
✔
@beammap1scan99sub a (defocused: abs focus value is -0.25+0.60=+0.35)
2017-01-25.243 Uranus
0.105411
onTheFlyMap
2017-01-25T19:19:58
2017-01-25T19:42:47
238.855965
44.67001
0.0
0.0
-0.25
-1.3e+01
1.8e+01
✔ 639.9 MB
✔
@beammap1scan99sub a (back to good focus at -0.25 values). +1 dB attenuation change in the injection of boards.
2017-02-21.38 Uranus
0.40602
onTheFlyMap
2017-02-21T17:13:23
2017-02-21T17:14:53
226.197875
52.033947
0.0
0.0
0.0
-1.7e+01
1.5e+01
✔ 43.5 MB
✔
First focus of the session (along the Z-axis direction)
1/5
2017-02-21.39 Uranus
0.40602
onTheFlyMap
2017-02-21T17:14:56
2017-02-21T17:16:11
226.617963
51.844045
0.0
0.0
-0.8
-1.7e+01
1.5e+01
✔ 36.8 MB
✔
2/5
2017-02-21.40 Uranus
0.416526
onTheFlyMap
2017-02-21T17:16:14
2017-02-21T17:17:29
227.041584
51.655256
0.0
0.0
-0.4
-1.7e+01
1.5e+01
✔ 35.9 MB
✔
3/5
2017-02-21.41 Uranus
0.416526
onTheFlyMap
2017-02-21T17:17:31
2017-02-21T17:18:46
227.441272
51.465482
0.0
0.0
0.4
-1.7e+01
1.5e+01
✔ 36.6 MB
✔
4/5
2017-02-21.42 Uranus
0.416526
onTheFlyMap
2017-02-21T17:18:49
2017-02-21T17:20:04
227.86473
51.273319
0.0
0.0
0.8
-1.7e+01
1.5e+01
✔ 36.7 MB
✔
5/5
Results:
Figures are not really reliable, we set the focus to -0.3 mm along the Z-direction by considering both the maximization of the flux and the ratio: power in side lobes / power in main beam.
2017-02-21.43 Uranus
0.473203
onTheFlyMap
2017-02-21T17:27:14
2017-02-21T17:28:49
230.567695
49.950429
0.0
0.0
-0.3
-1.7e+01
1.5e+01
✔ 45.1 MB
✔
We repeat the focus procedure along the Z-axis.
1/5
2017-02-21.44 Uranus
0.473203
onTheFlyMap
2017-02-21T17:28:50
2017-02-21T17:30:06
230.959459
49.745521
0.0
0.0
-1.1
-1.7e+01
1.5e+01
✔ 36.7 MB
✔
2/5
2017-02-21.45 Uranus
0.473203
onTheFlyMap
2017-02-21T17:30:09
2017-02-21T17:31:24
231.341533
49.542975
0.0
0.0
-0.7
-1.7e+01
1.5e+01
✔ 36.7 MB
✔
3/5
2017-02-21.46 Uranus
0.473203
onTheFlyMap
2017-02-21T17:31:26
2017-02-21T17:32:41
231.718416
49.342215
0.0
0.0
0.1
-1.7e+01
1.5e+01
✔ 36.0 MB
✔
4/5
2017-02-21.47 Uranus
0.473203
onTheFlyMap
2017-02-21T17:32:43
2017-02-21T17:33:59
232.09875
49.139705
0.0
0.0
0.5
-1.7e+01
1.5e+01
✔ 36.8 MB
✔
5/5
Results are still very bad because there are poor weather conditions
--> we decide to do a skydip
2017-02-21.51 Uranus
0.198924
onTheFlyMap
2017-02-21T18:07:34
2017-02-21T18:08:44
241.276172
43.322052
0.0
0.0
-0.3
-1.7e+01
1.5e+01
✔ 33.3 MB
✔
1/5
2017-02-21.52 Uranus
0.198924
onTheFlyMap
2017-02-21T18:08:45
2017-02-21T18:10:05
241.602339
43.082232
0.0
0.0
-1.1
-1.7e+01
1.5e+01
✔ 38.0 MB
✔
2/5
2017-02-21.53 Uranus
0.198924
onTheFlyMap
2017-02-21T18:10:07
2017-02-21T18:11:23
241.910726
42.851652
0.0
0.0
-0.7
-1.7e+01
1.5e+01
✔ 36.7 MB
✔
3/5
2017-02-21.54 Uranus
0.337792
onTheFlyMap
2017-02-21T18:11:26
2017-02-21T18:12:42
242.21279
42.620992
0.0
0.0
0.1
-1.7e+01
1.5e+01
✔ 36.6 MB
✔
4/5
2017-02-21.55 Uranus
0.337792
onTheFlyMap
2017-02-21T18:12:45
2017-02-21T18:14:00
242.526732
42.392617
0.0
0.0
0.5
-1.7e+01
1.5e+01
✔ 37.6 MB
✔
5/5
Results:
Flux A1: -0.40
FWHM A1: -0.52
Ellipticity A1: -0.60
Flux A2: -0.38
FWHM A2: -0.43
Ellipticity A2: -0.49
Flux A3: -0.36
FWHM A3: -0.45
Ellipticity A3: -0.42
Results are more or less consistent for the 3 arrays but the flux and fwhm points do not follow a well defined parabola. The estimator based on the secondary beam power indicates a focus correction at about -0.3 mm
2017-02-23.14 Uranus
0.150126
onTheFlyMap
2017-02-23T17:14:51
2017-02-23T17:15:56
228.883236
50.773867
0.0
0.0
0.0
0.0
0.0
✘ 32.1 MB
✔
cancelled: no auto_tune enabled
2017-02-23.16 Uranus
0.091734
onTheFlyMap
2017-02-23T17:19:25
2017-02-23T17:20:55
230.491952
49.99665
0.0
0.0
0.0
0.0
0.0
✔ 43.2 MB
✔
dark test: auto_tune enabled
2017-02-23.17 Uranus
0.091734
onTheFlyMap
2017-02-23T17:20:56
2017-02-23T17:22:28
230.953392
49.819218
0.0
0.0
0.0
0.0
0.0
✔ 43.8 MB
✔
dark test: auto_tune enabled
2017-02-23.24 Uranus
0.270093
onTheFlyMap
2017-02-23T17:39:57
2017-02-23T17:41:14
236.259825
46.759142
0.0
0.0
0.0
-1.9e+01
1.1e+01
✔ 36.9 MB
✔
@focusOTF-Z 0: scan 1
2017-02-23.25 Uranus
0.270093
onTheFlyMap
2017-02-23T17:41:15
2017-02-23T17:42:31
236.60549
46.542727
0.0
0.0
-0.8
-1.9e+01
1.1e+01
✔ 36.6 MB
✔
@focusOTF-Z 0: scan 2