WRPHALT

Name

wrphalt

Purpose (one Line)

Write a photometry log file.

Description

File I/o

Calling Sequence

wrphalt,logname,filename,obj,fil,jd,exptime,gain,rad,sky1,sky2,serial, $
xpos,ypos,fwhm,maxcnt,sky,skyerr,mag,err,bad,rdnoise

Inputs

logname - string containing the photometry log file to write to.
filename - Original image file name for each point.
obj - String array containing all object names.
fil - String array with filter codes.
jd - Julian date of mid-time of observation.
exptime - Exposure time in seconds.
gain - Gain of system in photons per count.
rad - Radius of object aperture in pixels.
sky1 - Inner radius of sky annulus in pixels.
sky2 - Outer radius of sky annulus in pixels.
serial - Serial number for observation.
xpos - vector containing the x position for each point.
ypos - vector containing the y position for each point.
fwhm - Full-width at half maximum in arcseconds.
maxcnt - Original DN of maximum in image.
sky - Sky signal in counts/pixel.
skyerr - Uncertainty of the sky signal.
mag - Instrumental magnitude.
err - Uncertainties of the magnitudes.
bad - Bad flag

Optional Input Parameters

bad - flag that marks data as bad. 1 is bad, 0 or missing is good.
The vector is optional, default is that all are good.
rdnoise - Readout noise in e-/pixel, default is 0.00

Keyword Input Parameters

APPEND - if set appends data to the named file.

Outputs

Keyword Output Parameters

Common Blocks

Side Effects

Restrictions

Procedure

Modification History

Written by Marc W. Buie, Lowell Observatory, 2000/08/30
Peter L. Collins, Lowell Observatory. 2006/5/15
added readout noise support and 'self' handling for badpar.