No Subject

[Tom Droege <tdroege@veriomail.com>]

Below is the fits header as I am now writing it.

I am taking data and adjusting the stop positions so that the star 
positions match up with the cursor using DS9.

When I read a file into DS9, I find I have to rotate by 90 degrees and flip 
the X axis to make image come out to match Uranometria 2000.  I assume that 
DS9 reads the WCS fits entries and sets up the display accordingly.  What 
am I doing wrong?

I have now got the parameters adjusted so that I am within about 1/4 
degree.  It is easy to identify star fields.

Tom Droege

SIMPLE  =                    T / file does conform to FITS standard
BITPIX  =                   16 / number of bits per data pixel
NAXIS   =                    2 / number of data axes
NAXIS1  =                 2043 / length of data axis 1
NAXIS2  =                 2037 / length of data axis 2
EXTEND  =                    T / FITS dataset may contain extensions
COMMENT   FITS (Flexible Image Transport System) format defined in Astronomy an
COMMENT   Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365
COMMENT   Contact the NASA Science Office of Standards and Technology for the
COMMENT   FITS Definition document #100 and other FITS information.
DATE    = '2001-04-13T02:18:37' / file creation date (YYYY-MM-DDThh:mm:ss UTC)
FILTER  = 'I       '
LATITUDE=              41.8271 / Site H latitude, degrees north
LONGITUD=             -88.3125 / Site H longitude, degrees east
RALIM   =                 -9.5 / RA Limit Switch Position Degrees East
DECLIM  =                   0. / Declination limit switch Degrees North
DATASEC = '[ 17:2064, 1:2048]' / Place keeper for Active area of the detector
BIASSEC = '[ 10:15, 1:2048]'   / Place keeper for Under-Over scan region
TIMESYS = 'UT      '           / time system for exposure start
EPOCH   =                2001. / Place keeper for Epoch of coordinates
EQUINOX =                2000. / Place keeper for Equinox of coordinates
SCALE   =                  7.4 / Arc seconds per pixel
TIMEBASE= 'Manual GPS'         / By hand transfer to PC clock
COMMENT   Additions to Constant File
RA      = '9:47:0.46'          / RA of Field Center
RATIME  = '1.979492'           / Seconds since turning on RA drive
IMAGETYP= 'object  '           / object frame
TELESCOP= 'TOM     '           / telescope
OBSERVER= 'Tom Droege'         / Observer
OBSERVAT= 'Batavia, IL'        / Location
WATERTMP= '9.073969'           / Cooling water temperature
VCOTEMP = '18.29028'           / VCO Temperature
DEC     = '0:00:00 '           / Place Keeper for DEC of field center
CRVAL1  =                   0. / Place Keeper for DEC of field center
CRVAL2  =             146.8352 / RA of Field Center
CTYPE1  = 'DEC--TAN'
CTYPE2  = 'RA---TAN'
CRPIX1  =                1016.
CD1_1   =             0.002126
CRPIX2  =                1015.
CD2_2   =            -0.002126
CDELT1  =             0.002126
CDELT2  =            -0.002126
CROTA1  =                   0.
CROTA2  =                   0.
UT      = '03:18:31'           / Universal time of #0 exposure (V) start
COMMENT   This is the #1 Camera File
DATE-OBS= '2001-04-13T03:18:33' / UT date-time of exposure start
UTSTART = '03:18:33'           / Universal time of #1 exposure (I) start
EXPTIME =              99.7998 / Open Time for Camera 1 usually I
GAIN    =                  2.5 / Place Keeper for Gain in electrons per adu
RDNOISE =                  25. / Place Keeper for Read Noise in electrons
CCDTEMP = '10.05053'           / CCD Temperature Camera 1
END