[daip] reading 1996 uv-fits data in 15OCT99 AIPS

Philip N Appleton pnapplet at iastate.edu
Thu Jul 26 15:32:33 EDT 2001


Dear friendly NRAO person,

I have some uv data written with FITTP onto tape (blocking factor 10)
in Mar 1996. I am trying to combine this data (which was taken with
the C-array) with more recent (1999) dat taken with the B
array. However, my current version of AIPS (15OCT99) does not seem to
recognize the records--presumably because there was was change of
format after 1996. Is there something in 15OCT99 which will allow me
to read the older formatted data? 

The data is on tape in separate fits files-- for various reasons I
cannot mount my alphastation500 tape drive directly and so have to
read the tape into a disk file with dd. I am using 

dd if=/dev/drive of=uvdata_1 bs=18800           

then using uvlod from 15OCT99 which then produces the following
message

Task UVLOD  (release of 15OCT99) begins
cartwh> UVLOD1: ZTPOPD: using translated file name =
cartwh> UVLOD1: ZTPOPD: /local/phila/phil/a118_c_fin/FILE1
cartwh> UVLOD1: Found ARP118   observed on 17-MAR-1996
cartwh> UVLOD1: UV data will be written in compressed format
cartwh> UVLOD1: Create A118C_CH0   .ICON  .   1 (UV)  on disk  2  cno   13
cartwh> UVLOD1: UVFDAT: ERROR READING TAPE. IERR=     4
cartwh> UVLOD1: Destroyed  1 extension files of type HI
cartwh> UVLOD1: Destroyed UV image file: catno=     13 disk= 2
cartwh> UVLOD1: Purports to die of UNNATURAL causes
cartwh> UVLOD1: cartwheel 15OCT99 TST: Cpu=     0.5  Real=     3  IO=       515



any ideas

thanks

Phil


-----------------------------------------------------------------------------

         Phil Appleton                          Phone (515)-294-3667
         Fick Observatory,                      Fax (515)-294-6027
         Department of Physics and Astronomy,   E-mail pnapplet at iastate.edu
         Iowa State University,                 "Lagavulin. Not just a town
         Ames, Iowa 50011                        with peat bogs.........."
         USA
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