From tghosh@naic.edu Sun Apr 30 06:29:15 2006 Date: Sun, 30 Apr 2006 08:28:55 -0400 From: Tapasi Ghosh To: Richard Porcas Cc: "ganesh >> Ganesan R" , vlbi-grp@naic.edu, vlbiobs@nrao.edu, mclausse@nrao.edu, anupreeta@mpifr-bonn.mpg.de, porcas@mpifr-bonn.mpg.de Subject: Re: BM241 observations Dear Richard, I just finished running BM241 here. I am afraid, the best part of the first 1.5 hour was lost due to many serious problems here. About 5 hours before the run, a high-voltage transformer developed a short rendering the control room/Receiver room and the clock/digital backend room without power. Our maintainance crew came in immediately, and worked very hard to get power back about 30 mins before the run, but when all the control software were brought up, a crucial element didn't start up, making us unable to set-up the Rx-IF/LO system. By the time all that got sorted out, almost an hour was gone, and datataking really began from scan number 49 at Arecibo. I am really sorry, but it was completely unprecedented, and our maintainance and electronics/software group provided as much support as they could. I do hope that at least the 1.5 hours data that we could record will be useful to you. With sincere apologies, Tapasi