#
# Dual Prism Mode Flat Fields
#
# Sequence of Flat Field Spectra with the LS5x60x1.0 long slit in dual
# mode with the prism dispersers.  Because of the wavelength-dependent
# dispersion of the prisms, there are no red+blue combos of lamps and
# filters that work, se we take blue and red separately, leaving one
# or other channel idle.
#
# If using a narrower (e.g., 0.6-arcsec) slit mask, you will need
# to increase exposure times.
#
# Scalings:  1.0" Slit: Red  GG495 VFlat 5 0.5 sec
#                       Blue Clear ND1.5   0.5 sec
#                            UG5   QTH1    0.5 sec
# UG5+QTH1 can mildly saturate, but get better counts at UV end.
# No good solutions here...
#
# pogge@astronomy.ohio-state.edu
# 2012 Jun 10
#

calmode

Archive:
  partner CALIBRATION
  propid  CALIBRATION
  pi_name All

Instrument:
  instconfig dual prism
  slitmask ls5x60x1.0

Exec:
  # QTH1 + ND1.5, blue only
  lamp qth1 on
  blue flat QTH1+ND1.5 Dual Prism Flat
  blue exptime 0.5
  blue filter ND1.5
  blue nimgs 5
  blue go
  blue nimgs 1

  # qTH1 + UG5
  blue flat UG5 + QTH1 Dual Prism Flat
  blue filter UG5
  blue exptime 0.5
  blue nimgs 5
  blue go
  blue nimgs 1
  lamp off

  # Red Flats with VFLAT 5 + GG495
  lamp vflat 5 on
  red flat VFLAT 5 + GG495 Dual Red Prism Flat
  red exptime 0.5
  red filter GG495
  red nimgs 5
  red go
  red nimgs 1
  lamp off

end