[daip] [!9346]: AIPS - SAD problem, maybe due to RFI

Robert Gray noreply at nrao.edu
Wed Nov 30 14:28:46 EST 2016


Robert Gray updated #9346
-------------------------

SAD problem, maybe due to RFI
-----------------------------

           Ticket ID: 9346
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/9346
           Full Name: Robert Gray
               Email: roberthansengray at gmail.com
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 30 November 2016 07:28 PM
             Updated: 30 November 2016 07:28 PM
                 Due: 02 December 2016 07:28 PM (2d 0h 0m)
      Resolution Due: 08 December 2016 07:28 PM (8d 0h 0m)



Hi!

SAD is quitting with messages like below; any idea what might be the problem?  I could not resolve the problem by searching on-line.  I notice the RESID file is left busy...

 ZMSGOP: FILE DA01:MSD000000.000;      NOT FOUND
ZTTOP2: error translating /dev/pts/0
ERROR  2 ASSIGNING OUTPUT TO /dev/pts/0      
 ZMSGOP: ZTTOPN RETURNS ERROR =   1 FOR LUN =   6
 ZMSGOP: FILE DA01:MSD000000.000;      NOT FOUND
...
AIPS 1: TASK QUIT WITHOUT RESUMING ME

My procedure invoking IMEAN and AIPS repeatedly on 1024 channels gets through channel 791 fine, then fails on channel 792.  This channel is in a group of channels with considerable RFI... can that be the reason?  If so, I can flag those channels.

What does “WITHOUT RESUMING ME” mean?

Thanks for any thoughts you have on this!  A more complete log is below.

Best wishes,

Bob Gray

AIPS 1: Resumes
AIPS 1: IMEAN    was not found to be running
AIPS 1: 'CHANNEL='       791
AIPS 1: 'IMEAN ASSIGNED ACTNOISE, PIXSTD='             0.1072225
AIPS 1: 'RUNNING SAD BECAUSE BLANKED=0...'
SAD  1: Task SAD    (release of 31DEC16) begins
SAD  1: ZTXOP2: using translated file name =
SAD  1: ZTXOP2: /home/rgray/CUB.SAD
SAD  1: Create 160808WOW-YC.RESID .   1 (MA)  on disk  1  cno   11
SAD  1: True rms taken from ACTNOISE in header = 1.072E-01
SAD  1: Looking for up to  800 sources in subfield:
SAD  1: BLC:      10.     10.    791.      1.      1.      1.      1.
SAD  1: TRC:    1014.   1014.    791.      1.      1.      1.      1.
SAD  1: Using Clean beam 355.48291 131.76923  -22.03 from CG table
SAD  1: Searching down to   1.286670 (JY/BEAM )  pass 1
SAD  1: Found no new islands in pass 1
SAD  1: Searching down to   0.857780 (JY/BEAM )  pass 2
SAD  1: Found no new islands in pass 2
SAD  1: Searching down to   0.643335 (JY/BEAM )  pass 3
SAD  1: Found no new islands in pass 3
SAD  1: Searching down to   0.536113 (JY/BEAM )  pass 4
SAD  1: Found no new islands in pass 4
SAD  1: Searching down to   0.428890 (JY/BEAM )  pass 5
SAD  1: Found      3 Islands in pass 5
SAD  1: Successfully solved      3 islands, all converged
SAD  1: Resulting number of sources fit is     3
SAD  1: Destroyed residual image as requested
SAD  1: Appears to have ended successfully
SAD  1: localhos 31DEC16 TST: Cpu=      0.0  Real=      0  IO=        31
AIPS 1: Resumes
AIPS 1: SAD      was not found to be running
AIPS 1: '***'
AIPS 1: '*** CHANNEL='                 792
AIPS 1: 'QIMVAL PIXVAL & ERROR:'        -0.4491145    -1
AIPS 1: 'RUNNING IMEAN BECAUSE BLANKED=0…'
AIPS 1: Waiting for returned adverbs
IMEAN1: Task IMEAN  (release of 31DEC16) begins
IMEAN1: Initial guess for PIXSTD taken from ACTNOISE in header
IMEAN1: Guess is Mean=-1.8725E-04  Rms= 1.0722E-01
IMEAN1: Draw gaussian fit
IMEAN1: GFINIS: number records used      19
IMEAN1: Successful plot file (histogram) version    692
IMEAN1: Image= 160808WOW-YC.YCL001.   1 1   xywind=   10   10 1014 1014
IMEAN1: Mean and rms found by fitting peak in histogram:
IMEAN1: Mean=-1.7101E-03 Rms= 1.6208E-01  **** from histogram
IMEAN1: Mean and rms found by including all data:
IMEAN1: Mean= 1.804E-04 Rms= 2.321E-01 JY/BEAM  over     1010025. pixels
IMEAN1: Flux density =  1.0443E+00 Jy      beam area = 174.48 pixels
IMEAN1: Minimum=-1.6262E+00 at  494  406  792    1
IMEAN1: Skypos: RA 19 27 20.285  DEC -27 28 20.95
IMEAN1: Maximum= 1.8151E+00 at  511  455  792    1
IMEAN1: Skypos: RA 19 26 57.826  DEC -27 13 59.63
IMEAN1: Skypos: 1422.571 MHz  IPOL
IMEAN1: returns adverbs to AIPS
IMEAN1: Appears to have ended successfully
IMEAN1: localhos 31DEC16 TST: Cpu=      0.0  Real=      0  IO=         4
AIPS 1: Resumes
AIPS 1: IMEAN    was not found to be running
AIPS 1: 'CHANNEL='       792
AIPS 1: 'IMEAN ASSIGNED ACTNOISE, PIXSTD='             0.1620786
AIPS 1: 'RUNNING SAD BECAUSE BLANKED=0...'
SAD  1: Task SAD    (release of 31DEC16) begins
SAD  1: ZTXOP2: using translated file name =
SAD  1: ZTXOP2: /home/rgray/CUB.SAD
SAD  1: Create 160808WOW-YC.RESID .   1 (MA)  on disk  1  cno   11
SAD  1: True rms taken from ACTNOISE in header = 1.621E-01
SAD  1: Looking for up to  800 sources in subfield:
SAD  1: BLC:      10.     10.    792.      1.      1.      1.      1.
SAD  1: TRC:    1014.   1014.    792.      1.      1.      1.      1.
SAD  1: Using Clean beam 355.48291 131.76923  -22.03 from CG table
SAD  1: Searching down to   1.944943 (JY/BEAM )  pass 1
SAD  1: Found no new islands in pass 1
SAD  1: Searching down to   1.296629 (JY/BEAM )  pass 2
SAD  1: Found      1 Islands in pass 2
SAD  1: Searching down to   0.972472 (JY/BEAM )  pass 3
SAD  1: Found      6 Islands in pass 3
SAD  1: Searching down to   0.810393 (JY/BEAM )  pass 4
SAD  1: Found     20 Islands in pass 4
SAD  1: Searching down to   0.648314 (JY/BEAM )  pass 5
SAD  1: Found     98 Islands in pass 5
 ZMSGOP: FILE DA01:MSD000000.000;      NOT FOUND
ZTTOP2: error translating /dev/pts/0
ERROR  2 ASSIGNING OUTPUT TO /dev/pts/0      
 ZMSGOP: ZTTOPN RETURNS ERROR =   1 FOR LUN =   6
 ZMSGOP: FILE DA01:MSD000000.000;      NOT FOUND
ZTTOP2: error translating /dev/pts/0
ERROR  2 ASSIGNING OUTPUT TO /dev/pts/0      
 ZMSGOP: ZTTOPN RETURNS ERROR =   1 FOR LUN =   6
 ZMSGOP: FILE DA01:MSD000000.000;      NOT FOUND
ZTTOP2: error translating /dev/pts/0
ERROR  2 ASSIGNING OUTPUT TO /dev/pts/0      
 ZMSGOP: ZTTOPN RETURNS ERROR =   1 FOR LUN =   6
 ZMSGOP: FILE DA01:MSD000000.000;      NOT FOUND
ZTTOP2: error translating /dev/pts/0
ERROR  2 ASSIGNING OUTPUT TO /dev/pts/0      
 ZMSGOP: ZTTOPN RETURNS ERROR =   1 FOR LUN =   6
AIPS 1: TASK QUIT WITHOUT RESUMING ME
AIPS 1: Begin check for any 'standard' scratch files
AIPS 1: Scratch files -- destroyed:    0  still active:    0
AIPS 1: Resumes


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