[daip] B1950 -> J2000

[Eric Greisen]

Ian Pattison writes:
 > I wish to use OHGEO so that I can plot a radio map and a near-IR image 
 > together (KNTR). The task completes but the transformed image (changing 
 > the near-IR with respect to the radio) only has one axis names 'DEX', when 
 > I display this .OHGEO file with TVAL. The only problem I can see is that 
 > the radio map is in B1950 coordinates, and the near-IR in J2000. I have 
 > been using OHGEO on plenty of other images with no problem, but they were 
 > all in J2000. Is this the problem, and if so, is there a task in AIPS 
 > which can covert bewteen epochs?

The verb EPOSWTCH will switch the header - then run OHGEO on the radio
image.  If the axes are named DEX then they are not astronomy images
however....  or at least are not documented to be astronomy images.

Eric Greisen