[daip] FILLM/VLA

[Lorant Sjouwerman]

Andy
There were some of these during the transition in that period and we're
currently fixing those in the archive. I thought we had all PI's notified 
where we saw it happen, but we could have overlooked yours - what expt
and dates are you talking about? Please let me know
Meanwhile we made a FLOPM with a special optype 'VLAE' to fix this


On Wed, 12 Mar 2008, Andy Biggs wrote:

#Hi there. I'm reducing some VLA data from August/September 2007 and am 
#seeing some bizarre behaviour; sometimes the band seems to 'flip'. I first 
#noticed this in BPLOT where the curvature of my bandpass solutions 
#inverted suddenly. Investigating further, one of the antennas has a spike 
#in the bandpass and this moves from, say, channel 2 to channel 6 after the 
#flip. This may be a problem with the VLA at the time of the observations 
#and uncorrectable, but I was wondering if maybe it was a problem with 
#FILLM. There is at least a link in that FILLM reports additional 
#'Processing Correlator Code' statments at the point at which the band 
#flips, perhaps as a result of the number of antennas changing. Have you 
#come across this?
#
#Cheers,
#
#Andy
#
#p.s. I am using 31DEC08 with a weekly midnight job.
#
#_______________________________________________
#Daip mailing list
#Daip at listmgr.cv.nrao.edu
#http://listmgr.cv.nrao.edu/mailman/listinfo/daip
#


Regards,

Loránt Sjouwerman - Scientific Services - lsjouwerman at nrao.edu
--------------------------------------------------------------
c/o NRAO Array Operations Center       Phone:  +1-575-835-7332
    P.O. Box 0 (1003 Lopezville Rd)    Switch: +1-575-835-7000
    Socorro NM 87801                   Fax:    +1-575-835-7027
PS: Please note that NRAO's telephone area code has changed to 575.