COADD(1)

💫 COADD(1) — the astrometry.net co-adding era 💫

okay bestie, so coadd is a little tool from astrometry.net that takes a whole stack of images and co-adds them into one. like, glow-up for your pixels. no cap.

✨ NAME ✨

coadd — co-add images for astrometry.net 💖

🌸 SYNOPSIS 🌸

coadd image ext weight ext wcs ext...

and bestie, if you want no weighting at all? just use "none" as the weight filename. iconic. 💅

🎀 OPTIONS 🎀

one bullet per flag, we do not skip, we do not summarise, we respect the manpage:

• -w file — output WCS file (default: input file). so if you don't say anything, it just uses the input file, lowkey efficient.
• -e extension — FITS extension to read the WCS from (default: the primary extension, which is 0).
• -o file — output image file. yes you can name it. main character behaviour.
• -O order — Lanczos order (default 3). it's giving ✨resampling math✨.
• -p plane — image plane to read (default 0).
• -N — use nearest-neighbour resampling (default: Lanczos). pick your fighter, bestie.
• -s sigma — smooth before resampling. soft focus, but for data. 🦋
• -D — divide each image by its weight image before starting. do the math first, diva.
• -v — more verbose. more talking. more yapping. we love her for that. 🗣️

👑 AUTHOR 👑

the Astrometry.net team, obviously. principal investigators are David W. Hogg (NYU) and Dustin Lang (CMU). genius behaviour fr fr 🧚

🌈 SEE ALSO 🌈

• http://astrometry.net — go. click it. absorb the lore. iykyk 💜

okay and finally, the little sign-off situation: this whole vibe is version 0.56, dated July 2015, and it ships from astrometry.net. slay, periodt, happy co-adding bestie 💖✨🎀