[fitsbits] WCS: reprojecting an image

[Mark Calabretta]

On Wed 2002/07/17 15:50:25 MST, Tim Pearson wrote
in a message to: fitsbits at NRAO.EDU

>Can anyone recommend a program to interpolate an image in one
>projection (e.g., TAN) into a different projection (e.g., SIN,
>possibly with different pixel size or tangent point)?

Tim,

Task REGRD in AIPS can do this for the classic AIPS projections (SIN,
TAN, ARC, STG, NCP, AIT, GLS, MER).  It can also do precession.  (Take
care with AIT, GLS, & MER as explained in Sect. 6.1.4 of Paper II.)

Also, task SKYVE can regrid a Digitized Sky Survey (DSS) image to a
coordinate frame and projection recognized by AIPS (for overlays, etc).

Mark Calabretta
ATNF