EK046B

Session: Oct 2019 (session 3)

Wavelength: 3.6/13 cm

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Experiment Feedback

Tianma65 (Bo Xia at Thu Oct 24 23:54:19 2019) Success:

Medicina (G.Maccaferri at Fri Oct 25 09:54:10 2019) Minor failures: POIN

Antenna Block between 04:31-06:42

Onsala (Jun Yang at Fri Oct 25 10:11:17 2019) Success:

No known problems.

Tianma65 (BoXia at Fri Oct 25 10:21:46 2019) Success:

Yebes (Daniel Valero at Fri Oct 25 10:49:55 2019) Success:

Not known problems

Hartebeesthoek (Jonathan Quick at Fri Oct 25 11:46:38 2019) Minor failures: PCAL

Phase cal appears to be intermittent. No other known problems.

Irbene (Roberts at Fri Oct 25 12:16:54 2019) Success:

During the LOFAR opening ceremony my be some RFI due the mobile phones.

Zelenchukskaya (Kononenko V. at Fri Oct 25 12:21:48 2019) Minor failures: SCHED

Stoped after scan no0117. There is not enough time to switch to another frequency band with cooling. We were forced to cut this experiment.

Badary (Kotlova, Alakova, Sorokovikov, Plotnikova at Fri Oct 25 12:22:47 2019) Minor failures: SCHED

Bd has not observed scans No0119 to No0153. There is not enough time to switch to another frequency band with cooling. We were forced to cut this experiment.

Svetloe (Slobojaninova N. at Fri Oct 25 12:25:06 2019) Success:

Westerbork (Blaauw at Tue Oct 29 12:46:48 2019) Minor failures: TSYS HIGH

From the sched file dummy Wb channels (BBC 7-8) put into lower Nyquist zone. BBCs 5 to 7 high TSYS values.

Noto (Salvo Buttaccio at Thu Oct 31 08:51:03 2019) Success:

Effelsberg (Uwe at Mon Nov 04 10:32:26 2019) Minor failures:

Operator did not notice the too high attenuation in the IF until 6:20 UT. Therefore DBBC had very low power in the BBCs from IFB and likely lost sensitivity. 32 MHz filters at S-band look really bad because of RFI and limited bandwidth at S-band.

Westerbork (Blaauw at Fri Mar 06 09:53:56 2020) Failure:RECE

13cm not possible for WSRT. 13cm has a different mixing scheme and because of that, the IF band is reversed. It's not easy to fix this because this would require patching inside the MFFE and changing our LO setup.