EP051

Session: Oct 2005 (session 3)

Wavelength: 18 cm

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Onsala (Michael Lindqvist at Fri Oct 28 13:12:54 2005) Minor failures : WIND

We had to stop observing at 07:40 UT due to high wind speeds.

Medicina (Andrea Orlati at Fri Oct 28 13:15:44 2005) Minor failures :

Antenna was not tracking the sources due to an error in Antenna Control Unit configuration. Problem fixed at 0:30 UT.

Effelsberg (A. Kraus at Fri Oct 28 14:43:38 2005) Minor failures : FORM RECO

Severe formatter communication problems all through the experiment; unclear how this affects data quality. Several attempts to improve the situation (check communication or use spare formatter) did not work (but led to a loss of a few minutes of data each time). Due to a Mark5 failure no recording was done between UT2326-2346 (reboot was necessary). Some RFI in the lower bands.

Torun (Kaz Borkowski at Mon Oct 31 07:06:12 2005) Minor failures :

Around 1:30 UTC BBC5 lost 1pps and remained so throughout the rest of this experiment (later this bbc unit has been replaced for a spare one, so that the following exps are not affected).

Westerbork (Tony Foley at Mon Oct 31 08:40:41 2005) Minor failures :

Wb phased array (ZP). Bad RFI about 1620MHz. System restart lost array from 01:43-01:50UT

Jodrell_Bank (Alastair Gun at Tue Nov 1 12:23:03 2005) Success :

The Lovell Telescope was used. No known problems.

Cambridge (Alastair Gunn at Tue Nov 1 12:24:07 2005) Minor failures : ANT

VLBA rack was running with failing PSU from the start, which may have resulted in unlocked BBCs. It was almost certainly dead by 09:30 UT and was taken offline at 11:43 UT for repair. Schedule was left to run with no valid data.

Robledo (Esther Moll at Wed Nov 2 14:34:03 2005) Minor failures : HIGH RFI POIN

VC#5 (294.49MHz) degraded by L-band known RFI. VC#1 (230.49MHz) and VC#3 (262.49MHz) were less affeted. Due to a encoder problem, the antenna was operated in computer mode instead of the usual mode. Pointing was checked before the observation. gps-fmout value at 02:35:13UT : 2005.301.02:35:13.03/gps-fmout/+7.641E-007