[daip] image axis

[Hanno Spreeuw]

Hello, I would like to ask a question about imagr.
If I set my cellsize too low it says "solution for restoring beam failed".
I can set a lower cellsize, but I want to map a major part of the primary
beam, so with a lower cellsize I need a larger number of pixels, 4096
instead of 2048. Then I get another message, "EXISTING IMAGE AXIS  1 SIZE
INCOMPATABLE 4096 2048", see below. There are only a few thousand
visibilities available with a uv spacing larger than 0.7. I don't want to
set uvmin any lower than 0.7.
Can you help me?
Thank you,
Hanno Spreeuw.


localh> IMAGR1: Task IMAGR  (release of 31DEC04) begins
localh> IMAGR1: ZTXOP2: using translated file name =
localh> IMAGR1: ZTXOP2:
/home/hanno/aips/DA00/LOCALHOST/1806_20_0401_FINAL.CBOX
localh> IMAGR1: ZTXOP2: using translated file name =
localh> IMAGR1: ZTXOP2:
/home/hanno/aips/DA00/LOCALHOST/1806_20_0401_FINAL.CBOX
localh> IMAGR1: WINDF: Number of clean boxes/field read as follows:
localh> IMAGR1: Field 01:   6
localh> IMAGR1: Create NEWCL2      .IMAGR .   1 (UV)  on disk  1  cno   21
localh> IMAGR1: Beginning channel    1 through    1 with  8 IFs
localh> IMAGR1: IMACPY: Copied     2113 visibilities to be imaged
localh> IMAGR1: UVWAIT: begin finding uniform weights
localh> IMAGR1: UVWAIT: Average grid weight  3.073E+02
localh> IMAGR1: UVWAIT: Adding temperance S  6.147E+01
localh> IMAGR1: UVWAIT: begin applying uniform or other weights
localh> IMAGR1: UVWAIT: Sum of weights in  1.936E+05 and out  3.223E+05
localh> IMAGR1: UVWAIT: Noise is increased by a factor 1.233 due to weighting
localh> IMAGR1: UVWAIT: Average summed weight  3.073E+02 over       8566 vis
localh> IMAGR1: EXISTING IMAGE AXIS  1 SIZE INCOMPATABLE 4096 2048
localh> IMAGR1: IMGATT: ERROR WITH IMAGE CLEAN field number 0001
localh> IMAGR1: CLNOPN: ERROR OPENING CLEAN process object
localh> IMAGR1: Deleting UV work file:
localh> IMAGR1: Destroyed  1 extension files of type AN
localh> IMAGR1: Destroyed  1 extension files of type FQ
localh> IMAGR1: Destroyed UV image file: catno=     21 disk= 1
localh> IMAGR1: Purports to die of UNNATURAL causes
localh> IMAGR1: localhost    31DEC04 TST: Cpu=       0.2  Real=       0

This is inp of imagr:
>inp
AIPS 1: IMAGR: Wide field imaging/Clean task
AIPS 1: Adverbs     Values         %2