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lbaops:lbaaug2017:c3202

This page is logging for the asteroid Florence bistatic radar observations with Tid and ATCA.

Tue 29 Aug

4 MHz 8 bit data recorded. DAS 4 MHz offset by 3 MHz from CABB centre frequency. msl_f.pro das profile on BOTH DAS, using dig_out adapter board.

Recording CA01 only on “DAS1” (cavsi1) and CA01-CA05 (5 antenna) on new vsi recorder. From before 07:20:48 this was actually the opposite order.

10:56 and 11:03 UTC - offsource. This was due to an accidental shutdown of caobs.

Fri 1 Sep

Tied array status
Array Tracking Unfortunately the array tracking CGI essentially has a bug so the actual good time is a little better than indicated

07:18:21.0 - On Florence with tied array 12 (IF2), 3 (IF1).

07:35:00.0 - Tied array 345 (IF2).

07:40:00.0 - Tied array 2345 (IF2).

07:45:00.0 - Tied array 12345 (IF2).

08:00:00.0 - End of experiment 1.

08:02:50.0 - Now recording IF1 7160 MHz, IF2 8560 MHz, both tied array 12345. Ref ant continues to be CA03.

08:10:00.0 - End of experiment 2.

08:11:39.0 - Now recording IF1 8560 MHz, IF2 7160 MHz, both tied array 12345.

09:00:00 - Stopped, went to phase cal. Saw phases had drifted out to about +/- 30 degrees.

09:01:54 - Back on Florence after rephaseing array.

10:00:00 - Stopped, went to phase cal. Phases were still within +/- 10 degrees.

10:01:45 - Back on Florence after rephaseing array.

10:38:30 - stop to change frequencies and rephase array.

10:40:50 - back on Florence, both IFs now 7160 MHz, both with full 5-ant tied array.

10:45:00 - changed tied array IF1 to CA03 only, had adjusted gain by 10:45:24.

12:10:00 - stop to rephase, phases were +/- 15 degrees.

12:11:45 - back on Florence.

14:05:00 - stop to rephase, phases were +/- 10 degrees.

14:06:30 - back on Florence.

Summary of good Florence Data (after 08:12 UTC)

08:11:41-09:00:19
09:01:59-10:00:00
10:01:47-10:38:50
10:40:46-12:10:22
12:11:52-14:05:05
14:06:29-16:00:00

lbaops/lbaaug2017/c3202.txt · Last modified: 2017/09/03 23:07 by chrisphillips