Hi Mike,Thanks for your comments and suggestions on my posting weird questions. Hope it didn't bother you and waste your time.I feel sorry that I probably cannot provide you the useful information to figure out my previous running questions under 'old' systems (Ubuntu 7.04 and IRAF 2.13). I have re-installed to 'new' system (Ubuntu 7.10 and IRAF 2.14). Even though, I still post my image header and imexam parameters for your reference in the followings:[code:1:0c68b94d0b]ccdred> imhead ngc7000_A12_HaE_1.fit long+[/code:1:0c68b94d0b]
ngc7000_A12_HaE_-001.fit[2184,1472][real]:
No bad pixels, min=0., max=0. (old)
Line storage mode, physdim [2184,1472], length of user area 2673 s.u.
Created Thu 07:14:51 27-Dec-2007, Last modified Wed 09:52:48 26-Dec-2007
Pixel file "ngc7000_A12_HaE_-001.fit" [ok]
EXTEND = F / File may contain extensions
ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator
DATE = '2007-12-26T01:52:50' / Date FITS file was generated
IRAF-TLM= '09:52:48 (26/12/2007)' / Time of last modification
INSTRUME= 'SBIG ST-10 Dual CCD Camera' /instrument or camera used
DATE-OBS= '2007-10-15T12:19:54' /YYYY-MM-DDThh:mm:ss observation start, UT
EXPTIME = 180.00000000000000 /Exposure time in seconds
EXPOSURE= 180.00000000000000 /Exposure time in seconds
SET-TEMP= -10.000000000000000 /CCD temperature setpoint in C
CCD-TEMP= -10.203084036736080 /CCD temperature at start of exposure in C
XPIXSZ = 6.8000000000000007 /Pixel Width in microns (after binning)
YPIXSZ = 6.8000000000000007 /Pixel Height in microns (after binning)
XBINNING= 1 /Binning factor in width
YBINNING= 1 /Binning factor in height
XORGSUBF= 0 /Subframe X position in binned pixels
YORGSUBF= 0 /Subframe Y position in binned pixels
IMAGETYP= 'object ' / Type of image
EGAIN = 1.3899999856948853 /Electronic gain in e-/ADU
FOCALLEN= 0.00000000000000000 /Focal length of telescope in mm
APTDIA = 0.00000000000000000 /Aperture diameter of telescope in mm
APTAREA = 0.00000000000000000 /Aperture area of telescope in mm^2
SWCREATE= 'MaxIm DL Version 4.51' /Name of software that created the image
SBSTDVER= 'SBFITSEXT Version 1.0' /Version of SBFITSEXT standard in effect
SWOWNER = 'Lelis1 ' / Licensed owner of software
WCSDIM = 2
LTM1_1 = 1.
LTM2_2 = 1.
WAT0_001= 'system=physical'
WAT1_001= 'wtype=linear'
WAT2_001= 'wtype=linear'
ZEROCOR = 'Dec 26 9:52 Zero level correction image is ../bias/zero.fits'
DARKCOR = 'Dec 26 9:52 Dark count correction image is ../dark/dark.fits with s'
FLATCOR = 'Dec 26 9:52 Flat field image is ../flat/flate.fits with scale=39695'
CCDSEC = '[1:2184,1:1472]'
CCDPROC = 'Dec 26 9:52 CCD processing done'[code:1:0c68b94d0b]ccdred> lpar imexam[/code:1:0c68b94d0b]
input = "ngc7000_A12_HaE_-001.fit" images to be examined
frame = 1 display frame
image = image name
(output = "") output root image name
(ncoutput = 101) Number of columns in image output
(nloutput = 101) Number of lines in image output
(logfile = "") logfile
(keeplog = no) log output results
(defkey = "a") default key for cursor list input
(autoredraw = yes) automatically redraw graph
(allframes = yes) use all frames for displaying new images
(nframes = 0) number of display frames (0 to autosense)
(ncstat = 5) number of columns for statistics
(nlstat = 5) number of lines for statistics
(graphcur = "") graphics cursor input
(imagecur = "") image display cursor input
(wcs = "logical") Coordinate system
(xformat = "") X axis coordinate format
(yformat = "") Y axis coordinate format
(graphics = "stdgraph") graphics device
(display = "display(image='$1',frame=$2)") display command template
(use_display = yes) enable direct display interaction
(mode = "ql")Hope you can get some ideas. And please don't put too much your efforts on them if there are no special information.Anyway, thanks for your kindly helps and concerns very much
hymong