GV020A

Session: Oct 2009 (session 3)

Wavelength: 18 cm

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Westerbork (Geert Kuper at Tue Nov 10 21:43:43 2009) Success : RFI

Wb used in phased array mode. Only RT7 in array. RFI in 1610 MHz USB and 1642 LSB (both RCP and LCP)

Medicina (scalambra at Wed Nov 11 00:05:09 2009) Success :

Arecibo (Tapasi Ghosh at Wed Nov 11 14:58:50 2009) Minor failures : SCHED POIN

(1) The telescope motion control system wasn't responding to drive commands at the start of the observation. Software restart of several systems were needed. Good data are available from UT 22:07 onwards. (2) For 3C454.3, extra attenuation had to be added to get acceptable power level. Discard data between 22:46 -- 22:52. (3) For the calibrator, J2139+1423, not enough time was allocated for the telescope to reach it. Discard data between 22:50 and 23:00.

Arecibo (Tapasi Ghosh at Wed Nov 11 15:00:54 2009) Minor failures :

CORRECTION: Item(30 above. Discard data between 22:50 -- 23:00 (scan of J2139+1423)

Arecibo (Tapasi Ghosh at Wed Nov 11 15:02:17 2009) Success :

I am having a bad typing day. That time range in item # 3 should be 22:58 -- 23:00 (and NOT 22:50 -- 23:00) Sorry

Torun (Kaz Borkowski at Thu Nov 12 06:40:59 2009) Minor failures :

Operator stopped observations after 23:27 considering the altitudes of remaining sources to be too low.

Effelsberg (Uwe Bach at Thu Nov 12 10:38:58 2009) Success :

Onsala (Michael Lindqvist at Mon Nov 16 09:18:59 2009) Minor failures :

Rain + 1 bad scan_check. Strange problem with the noisediode.

Noto (P. Cassaro at Mon Nov 30 10:04:45 2009) Success :

No known problems

Jodrell_Bank (Alastair Gunn at Thu Dec 3 12:06:48 2009) Success :

The Lovell Telescope was used (Jb1). No known problems.

JIVE (Bob Campbell at Thu Mar 04 08:30:11 2010) Success:

correlated in four passes, each with a subset of 2 SBs, to provide the desired number of lags.