EG037B

Session: Jun 2007 (session 2)

Wavelength: 18 cm

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Shanghai (Antao at Wed Jun 6 19:39:58 2007) Minor failures : RECE

The the IF power from left_polarize receiver is changing much that we can detect from the spectrum analizer.But right is OK.

Urumqi (Zhang hua at Wed Jun 6 23:16:50 2007) Success :

Medicina (Zacchiroli at Thu Jun 7 00:07:28 2007) Success :

Westerbork (Tony Foley at Thu Jun 7 11:04:49 2007) Minor failures : RFI PHAS

Wb used in phased array mode. Very severe RFI at the lower end of the band, in particular around 1625MHz. This gave problems with phasing the array there, so the polarization for first band will be poor. Also the phased array had to be restarted, so we lost 16:47-16:58UT

Onsala (Michael Lindqvist at Fri Jun 8 06:35:10 2007) Success :

RFI. Otherwise no known problems.

Torun (K.Borkowski at Fri Jun 8 08:47:35 2007) Minor failures : FS

Between about 16:15 and 17:37 UTC data will be mostly lost due hang-up of antenna control computer (probably connected with the thunderstorm at that very time) and later (at ~17:10) an unexpected crash of FS.

Effelsberg (A. Polatidis at Fri Jun 8 09:37:10 2007) Success :

Westerbork (Tony Foley at Mon Jun 11 13:01:15 2007) Minor failures : RECO

Wb used in phased array mode. Two scan_checks showed errors: 2007.157.19:40:43.07/scan_check/5,eg037b_j1340+3754_no0078,mark4,64,2007y157d19h26m42.004s,838.2s,16.000000,83968 2007.157.22:38:22.88/scan_check/16,eg037b_j1221+4411_no0133,mark4,64,2007y157d22h30m41.834s,458.4s,16.000000,4

Shanghai (Tao An at Tue Jun 12 05:11:08 2007) Minor failures : RECE TSYS HIGH

An accessory in the Lband-LCP receiver is aged, resulting extreme variations in the receiver temperature. This problem influenced the whole experiment (EG037B).

Noto (P. Cassaro at Mon Jun 18 12:57:56 2007) Success :