1. CCD Photometry with Pyraf
ASTR 3010

2. Useful Tutorials IRAF Aperture Photometry Tutorial:
IRAF Beginner’s Guide:
IRAF CCD Reduction Tutorial:

3. Photometric Reduction Project (20% of your final exam)
Your individual account was created in space.physast.uga.edu
userid: from your Oasis address  “isong”
passwd: temporary passwd 
 Upon 1st login, you will be asked to reset your password.
CCD data are available in /home/astr3010/ImagingData
BVI band photometric data with DOME flats, Sky flats, and Biases.
3 standard star fields.

4. Standard Fields
Check the “StandardFields.pdf” file in the data directory

5. C D A B Science Field (D42, D44, D45)
You need to measure B, V, I magnitudes (or upper limits) of following four stars: A, B, C, D
Submit reduced FITS files
and photometry result.
Due Date: Dec 2, 2010 C D A B

6. A Quick Tutorial on Pyraf
starting Pyraf
mkiraf (only once) in your working directory  choose ‘xgterm’
type ‘pyraf’
editing, displaying, dumping parameters: epar, lpar, dpar
start ds9
load packages in pyraf : imred  ccdred and digiphotapphot
some useful commands
imhead
ccdlist
setting up instrument  efosc.cl, efosc.dat, subsets
CCD preprocessing
zerocombine, flatcombine, ccdproc, badpixel image creation, etc.
Doing an aperture photometry
qphot
Badpixel correction will be done by a separate python routine.