[daip] [!5492]: aips - BPASS mystery end channel problems

Tracy Clarke do-not-reply at nrao.edu
Sun Sep 14 00:32:29 EDT 2014


Tracy Clarke updated #5492
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BPASS mystery end channel problems
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           Ticket ID: 5492
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/5492
           Full Name: Tracy Clarke
               Email: tracy.clarke at nrl.navy.mil
             Creator: User
          Department: AIPS Data Processing
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 14 September 2014 04:32 AM
             Updated: 14 September 2014 04:32 AM
                 Due: 17 September 2014 12:00 AM (2d 19h 28m)
      Resolution Due: 23 September 2014 12:00 AM (8d 19h 28m)



The malloc failure for BPASS is gone (thanks) but now I am struggling with the fact that no matter what i do I seem to have
a mystery end channel that gets a huge number thrown in for the BPASS solutions. I tried flagging and uvcop to get rid of this but no matter how I cut my data the last channel always has high values. Example below. This is still on Hamal, and user 1014, disk 1 
file 3 or 4 (VLITE data) or HAMAL user 1013, disk 1, file 14 (WIDAR data). 

VLITE example:

hamal > BPASS1:   284        2.93      3.96          1.24       1.65         0
hamal > BPASS1:   285        3.05      3.90          1.37       1.87         0
hamal > BPASS1:   286        2.32      3.12          1.35       1.78         0
hamal > BPASS1:   287        2.88      3.86          1.46       1.88         0
hamal > BPASS1:   289     2670.65   6504.54         89.64     113.05         0
hamal > BPASS1: BASOLV:   14 flagged channels in IF  1
hamal > BPASS1: BASOLV: will attempt to interpolate across band
hamal > BPASS1: Closure error statistics: IF  1 correlator  2
hamal > BPASS1: Channel   Mean amp &  amp**2    Mean phase & phase**2    Excess
hamal > BPASS1:     1        3.90      5.14          1.95       3.10         0
hamal > BPASS1:     3        4.29      5.43          1.89       2.85         0
hamal > BPASS1:     4        4.38      5.54          2.16       3.11         0
hamal > BPASS1:     5        4.48      5.52          2.14       3.14         0
hamal > BPASS1:     6        4.99      6.58          2.40       3.53         0

--------
WIDAR example:

 BPASS2:   472       10.44     13.80          7.35       9.42         0
hamal > BPASS2:   473       12.97     16.11          8.41      10.70         0
hamal > BPASS2:   474       11.73     14.64          7.26       9.04         0
hamal > BPASS2:   475        8.09     10.46          3.94       5.39         0
hamal > BPASS2:   512  6684503.00**********          0.03       0.04         0
hamal > BPASS2: BASOLV:    8 flagged channels in IF  1





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