[daip] another aips error message question

[Eric Greisen]

Cornelia C Lang writes:
 > Hi Eric,
 > 
 > I have been trying to do a two-field clean using IMAGR and keep
 > getting this error message after a round or two of cleaning:
 > 
 > Any suggestions/advice on what could be causing it?
 > Cornelia
 > 
 > 
 > IMAGR1: BGC Clean: using  103 cell beam + residuals >    65.32 MicroJy
 > IMAGR1:    19035 Residual map points loaded
 > IMAGR1: Field    1 min algorithm flux=  163.986 MicroJy iter=      634
 > IMAGR1: Field    1 Clean flux density=   12.956 MilliJy      634 comps
 > IMAGR1: Total Cleaned flux density     =   12.956 MilliJy      634 comps
 > IMAGR1: ALGSTB: All   368 Rows In AP (Max    523)
 > IMAGR1: ALGSTB field    1 Ipol gridded model subtraction chns    1-    2
 > IMAGR1: ALGSTB: Pass   1;  357-   0 Cells, with   212028 Pts
 > IMAGR1: Field   2 min = -108.3 MicroJy,max =  223.9 MicroJy
 > IMAGR1: Loading field   2 to TV from -2.382E-04 to  3.327E-04
 > IMAGR1: You have    30 seconds to select a menu item by:
 > IMAGR1: Press buttons A, B, or C to choose an operation
 > IMAGR1: Press button D for on-line help
 > IMAGR1: Clean continuing
 > IMAGR1: BGC Clean: using   -3 cell beam + residuals >    65.22 MicroJy
 > IMAGR1: OBJECT NAMED                                  IS NOT DEFINED
 > IMAGR1: CLBSHV: ERROR LOADING BEAM FOR
 > IMAGR1: CLNCYC: ERROR CLEANING CLEAN process object
 > IMAGR1: CLNUV2 : ERROR CLEANING CLEAN process object
 > IMAGR1: CLNUV : ERROR CLEANING CLEAN process object
 > IMAGR1: Deleting UV work file:
 > IMAGR1: Destroyed  1 extension files of type AN
 > IMAGR1: Destroyed  1 extension files of type FQ
 > IMAGR1: Destroyed UV image file: catno=      1 disk= 7
 > IMAGR1: Purports to die of UNNATURAL causes
 > IMAGR1: phobos       31DEC05 TST: Cpu=      17.5  Real=      41

Are you running with OVERLAP=2 and DO3D <= 0?

i see one fix in the change.doc (for 07) that might cause it to have
made 1 beam for multiple fields which would then mean it does not know
a beam for the 2nd field.  Set DO3D to true.

(Or better yet - update to 31DEC07 and run the MNJ - but you knew I
would say that.)

Eric Greisen