Spectrograph Characteristics

SBIG Self-Guiding Spectrograph + ST-8E CCD

Gain                              2.68 e-/adu
Readnoise                     18.6 e- with T_ccd = -10 C
Full-well capacity       16383 adu   (unbinned), 32500 adu   (2 x 2 binning)
Pixel size                      9 micron x 9 micron (unbinned)
Size of Detector          1534 pix x 1020 pix (unbinned)
Pixel scale                    0.728"/pix  (unbinning)

Low Resolution Mode:
Grating                             150 l/mm
Dispersion                        4.27 Angstrom/pix = 0.474 Angstrom/micron
Resolution                        TBD
Wavelength Coverage      6550 Angstrom

High Resolution Mode:
Grating                             600 l/mm
Dispersion                        1.067 Angstrom/pix = 0.1186 Angstrom/micron
Resolution                        TBD
Wavelength Coverage      1637 Angstrom

Instructions:

Plot of Fe+Ar arc lines and wavelength IDs

Suggested exposure times for Fe+Ar arc lamp spectra are approximately 60 sec at high dispersion and 10 sec at low dispersion.



Old Spectrograph + ST-8E CCD

          Dispersion                       4.1 Angstrom/mm = 0.37 Angstrom/pix
          Resolution                        1.4 pix = 5.7 Angstrom
          Wavelength Coverage      570 Angstrom
 
Last updated on Aug 4, 2005
tsmecker@uci.edu