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lbaops:lbajul2009:v271catlog [2009/07/05 22:10]
hbignall
lbaops:lbajul2009:v271catlog [2015/12/18 16:38] (current)
Line 4: Line 4:
 Tied antennas 12345.\\ Tied antennas 12345.\\
 Phase offset -90 degrees. Phase offset -90 degrees.
 +
 +Note: shadowing may be an issue in H75 array configuration. See [[http://​www.narrabri.atnf.csiro.au/​observing/​shadowing/​]]
  
 Had setup problems at ATCA. Did not get fully resolved till 00:30:00 UT !! Had setup problems at ATCA. Did not get fully resolved till 00:30:00 UT !!
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 23:42 - 23:49 UT. Swapped inputs at CABB interface. Still no change!! \\ 23:42 - 23:49 UT. Swapped inputs at CABB interface. Still no change!! \\
 00:07 - 00:12 UT. Found DAS inputs wrong in one polarisation. Swapped DAS inputs correct and swapped CABB interfaces as well. Reset catie but that affected 2-board outputs. Reset at 00:19UT\\ 00:07 - 00:12 UT. Found DAS inputs wrong in one polarisation. Swapped DAS inputs correct and swapped CABB interfaces as well. Reset catie but that affected 2-board outputs. Reset at 00:19UT\\
-DATA CORRECT FROM 00:09 UT. +DATA CORRECT FROM 00:09 UT.\\
 00:25:30 - 00:30:00 UT. Moved back to 1-board implementation. Fringes at 00:31:10 UT look great and pols now correct for ALL channels. 00:25:30 - 00:30:00 UT. Moved back to 1-board implementation. Fringes at 00:31:10 UT look great and pols now correct for ALL channels.
 +
 +N.B. The data should all be there  but in nott the right channels. Until 00:12UT the channel ordering is not 1,​2,​3,​4,​5,​6,​7,​8 as on wiki. It should be 1,​2,​7,​8,​5,​6,​3,​4 to account for the swapped inputs on IFP2 on the DASs.
  
 ~03:30 UT '​Bigbuf'​ errors - did not really go away for more than 15 mins.\\ ~03:30 UT '​Bigbuf'​ errors - did not really go away for more than 15 mins.\\
lbaops/lbajul2009/v271catlog.txt · Last modified: 2015/12/18 16:38 (external edit)