CL04P1

Session: Nov 2004 (session 3)

Wavelength: 90 cm

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Jodrell_Bank (Alastair Gunn at Tue Oct 26 02:27:51 2004) Failure : RECE

The Lovell Telescope was used. Receiver noise diode was too weak to give good calibration and could not be changed. Hence, no useful calibration data was observed. The receiver was uncooled and should have a Tsys of about 300K in both LCP and RCP.

Urumqi (Liu Xiang at Fri Oct 29 13:31:32 2004) Minor failures : HIGH RFI

We did noise-diode calibration with liquid-nitrogen, we got Tcal=29K in the 92cm band. We also did onoff measurement, but it gave wrong value of Tcal etc. , the reason may be interference and a little bit high Tsys.