AIPS HELP file for AX2REF in 31DEC09
AX2REF
Type: Adverb (scalar)
Use: To specify the reference pixel number on a coordinate
axis when two reference pixels are required.
Null value: 0
Tasks:
MCUBE......Build an n+1 dimensional image from a set of
n dimensional images. Null value => other end
of axis from AXREF.