EL029C

Session: May 2003 (session 2)

Wavelength: 18 cm

Comment

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Experiment Feedback

Shanghai (Xinyong Huang at Sun May 25 10:59:17 2003) Minor failures :

We stop the experiment at UT:07:16, because of the antenna with trouble.

Urumqi (zhanghua at Sun May 25 11:52:51 2003) Failure :

Experiment was failure.At UT:07:10, becouse of the power halt.

Medicina (Mauro at Sun May 25 16:22:05 2003) Minor failures :

For tecnical problems, possible problems in skan recorded from 05:00 to 07:00 UT

Torun (K.Borkowski at Mon May 26 04:39:43 2003) Success :

No known problems.

Onsala (Michael Lindqvist at Mon May 26 06:19:47 2003) Success :

No known problems.

Effelsberg (A. Kraus at Mon May 26 08:55:42 2003) Minor failures : FS

Computer problems led to the loss of the first two scans.

Hartebeesthoek (Jonathan Quick at Mon May 26 14:02:04 2003) Minor failures : RECE RFI POIN

Receiver cryogenics partially warmed up, lost data from 07:08 till 07:48 recoevering system. Telescope control computer failed from 08:17 thru 10:05. Signal distribution system glitched during scan at 13:24 - 13:27 UT

Noto (P. Cassaro at Tue May 27 12:11:52 2003) Minor failures : RFI

Noto (P. Cassaro at Tue May 27 12:14:51 2003) Minor failures : RECO

At 21:25 the recorder lost the vacuum

Jodrell_Bank (Alastair Gunn at Tue May 27 22:13:28 2003) Success :

Cambridge (Alastair Gunn at Tue May 27 22:13:59 2003) Success :

Low signal in BBCs 1 and 2 and NO signal in BBCs 7 and 8 due to MERLIN link restrictions. No other known problems.

Robledo (Z.P. for Esther Moll at Wed May 28 08:15:27 2003) Success :

Ops Crew: B/E; Weather condition: Partially Clear; Station Time delay: +0.5758; Recorder used: #1; L-Band System Temp: 24.6; L-Band Y-factor: 10.86; Noise Diodes: N/A; Ambient Load: 19.7; L-Band Coherency passed? YES

Urumqi (Liu Xiang at Tue Jun 3 12:32:30 2003) Minor failures : TSYS

Comments: No P-cal. The experiment was stopped at 07:10 because of power off. And the lowest Tsys(like 12K at RCP, 21.5K at LCP) in logfile should corresponds to 22K at RCP and 22K at LCP as we measured with radiometer, the Tsys in FS has some problem under investigation.

Urumqi (Liu Xiang at Tue Jun 3 13:24:39 2003) Minor failures : TSYS FS

Comment: the lowest Tsys of BBCs in logfile (like 23K at LCP, 12K at RCP) should corresponds to 22K at LCP and 22K at RCP as we measured with radiometer, so you could use a correction factor in ANTAB.

Westerbork (foley at Mon Jul 7 15:09:24 2003) Minor failures : PHAS

RTB unreliable. Used 13 telescopes in the array