Array parameters April 2013
(17/03-15/05)
Main parameter file: laboca-2013-04.rcp
Individual scans
| Scan # | Date | Parameter file | Array plot | Individual channel maps |
|---|---|---|---|---|
| 8947 | 2013-03-18T04:01 | Carina_8947_Laboca.rcp | array_8947.pdf | beams_8947.pdf |
| 8989¹ | 2013-03-18T05:51 | Carina_8989_Laboca.rcp | array_8989.pdf | beams_8989.pdf |
| 19096 | 2013-04-10T01:03 | Carina_19096_Laboca.rcp | array_19096.pdf | beams_19096.pdf |
| 19097 | 2013-04-10T01:23 | Carina_19097_Laboca.rcp | array_19097.pdf | beams_19097.pdf |
| 27692 | 2013-05-04T05:32 | Saturn_27692_Laboca.rcp | array_27692.pdf | beams_27692.pdf |
| 29111 | 2013-05-08T16:30 | Uranus_29111_Laboca.rcp | array_29111.pdf | beams_29111.pdf |
¹ This scan is not considered for the averaged parameter
file because of instabilities in the middle of the scan. Those were possibly
caused by some passing clouds or something similar.
Notes on individual channels
Note: Channels which are terminated with a resistor are not listed in the
following table anymore.
Also, from 2013 onward channel #241 is listed under "bad channels"
and not under "cross-talk", since the cross-talkers may be usable
for point sources, while #241 is not usable at all.
In summary, even if channels #65 and #257 seem to be a bit more unstable than before, the bad channels have not changed compared to November 2012.
| Channel # | Description |
|---|---|
| 101, 103, 106, 110 | Strong cross-talk: 101↔106 and 103↔110. 101 and 103 may be usable for point sources only. |
| 81, 82, 83, 84, 85, 86, 89, 90, 91, 92, 93, 94, 96, 136, 159, 160 | Channels located in group 4 / cable M. These channels usually don't show any astronomical signal and are considered bad. |
| 177, 179, 180, 182, 183, 184, 185, 191, 192, 201, 202, 203, 205, 207, 217, 218, 220 | Channels located in group 7 / cable A. These channels don't show astronomical signal and are considered bad. |
| 6, 45, 114, 133, 199, 204, 206, 208, 211, 213, 219, 228, 241, 309 | Bad channels, not showing any astronomical signal or very low signal levels, unconnected to groups 4 or 7 above. |
| 65, 77, 246, 257 | These channels are variable and usually usable. Check your data. |
channel_flags-2013-04.boa:
# 25 channels not connected to any bolometer
not_connected = [ 29, 33, 35, 40, 64, 66, 124, 135, 142, 144, 146, 151,
158, 189, 193, 195, 200, 224, 226, 284, 295, 302, 304, 306,
311 ]
# 20 channels with 1MOhm resistor
resistor = [ 15, 16, 87, 88, 95, 139, 143, 145, 149, 150, 157, 178,
181, 186, 187, 188, 190, 255, 310, 317 ]
# 2 channels sealed with an absorber
blind = [ 4, 163 ]
sealed = blind
# channels showing strong cross-talk
cross = [ 101, 103, 106, 110 ]
# Bad channels (no/low signal)
bad = [ 6, 45, 81, 82, 83, 84, 85, 86, 89, 90, 91, 92, 93, 94,
96, 114, 133, 136, 159, 160, 177, 179, 180, 182, 183, 184, 185, 191,
192, 199, 201, 202, 203, 204, 205, 206, 207, 208, 211, 213, 217, 218,
219, 220, 228, 241, 309 ]
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