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<font size="-1">Some issues with FLATN, inputs are below. Trying to
put together whole NVSS survey, with preprocessed reduced images.
This kind of thing has worked well in past with '-ait' COOTYPE.<br>
<br>
If I use cootype '-NCP', the header on the output file says it's
SIN projection.<br>
<br>
If I use cootype '-MER', with everything else the same, it doesn't
include any fields in the output, so just makes an unfilled map
with -1e20 to +1e20 in header and no valid pixels.<br>
<br>
thanks. lr<br>
<br>
<br>
AIPS 1: FLATN: Re-grid multiple fields and pointings to one image<br>
AIPS 1: Adverbs Values Comments<br>
AIPS 1:
----------------------------------------------------------------<br>
AIPS 1: Input images<br>
AIPS 1: INNAME 'NVSS_OPN11Z' Image name (name)<br>
AIPS 1: INCLASS 'IO0001' Image name (class)<br>
AIPS 1: INSEQ 1 Image name (seq. #)<br>
AIPS 1: (specify)<br>
AIPS 1: INDISK 2 Image disk drive #<br>
AIPS 1: NFIELD 2326 Max number of fields
per<br>
AIPS 1: pointing<br>
AIPS 1: NMAPS 1 Number of pointings<br>
AIPS 1: Output image<br>
AIPS 1: OUTNAME ' ' Image name (name)<br>
AIPS 1: OUTCLASS ' ' Image name (class)<br>
AIPS 1: OUTSEQ 0 Image name (seq. #)<br>
AIPS 1: OUTDISK 1 Image disk drive #<br>
AIPS 1: IMSIZE 6480 3240 Output image size in
pixels<br>
AIPS 1: COORDINA 12 *rest 0 Central pixel
coordinate<br>
AIPS 1: all 0 => use
observed<br>
AIPS 1: COOTYPE '-MER' Desired projection type<br>
AIPS 1: COOINC -40 40 Desired coordinate
increment<br>
AIPS 1: COOREF 3240 1620 Desired reference pixel<br>
AIPS 1: ROTATE 0 Rotation to be used
(deg)<br>
AIPS 1: REWEIGHT 4 0 (1) Interpolation
halfwidth<br>
AIPS 1: (2) Minimum fraction of
good<br>
AIPS 1: pixels required
(0->1/3)<br>
AIPS 1: WEIGHTIT 0 Weight image down by
WEIGHTIT<br>
AIPS 1: ** press RETURN for more, enter Q or next line to quit
print **<br>
#<br>
AIPS 1: times radius from
center in "<br>
AIPS 1: EDGSKP 2 Skip pixels around the
edges<br>
AIPS 1: inscribed ellipse also
used<br>
AIPS 1: OPTYPE ' ' For mosaics only
(NMAPS>1)<br>
AIPS 1: compute and output
expected<br>
AIPS 1: noise ('NOIS') or
weight<br>
AIPS 1: ('WEIG').<br>
AIPS 1: APARM *all 0 (1) >0 => do 3-D
corr.<br>
AIPS 1: ONLY for snapshots<br>
AIPS 1: (2) Parallactic angle
(deg)<br>
AIPS 1: (3) Zenith angle (deg)<br>
AIPS 1: (4-8) radial scaling
parms<br>
AIPS 1: (9) Linear scaling<br>
AIPS 1: PBPARM 1 1 Beam parameters (NMAPS
> 1)<br>
AIPS 1: *rest 0 (1) Cutoff; (2) Use
(3)-(7)<br>
AIPS 1: (3)-(7) Beam shape<br>
AIPS 1: NOISE *all 0 Relative uncertainties
by<br>
AIPS 1: pointing: 0 -> image
header<br>
AIPS 1: BADDISK *all 0 Disks to avoid for
scratch<br>
</font>
<pre class="moz-signature" cols="72">--
Lawrence Rudnick
Distinguished Teaching Professor
Minnesota Institute for Astrophysics
School of Physics and Astronomy
University of Minnesota
<a class="moz-txt-link-freetext" href="http://umn.edu/~larry">http://umn.edu/~larry</a> <a class="moz-txt-link-abbreviated" href="mailto:larry@umn.edu">larry@umn.edu</a></pre>
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