# Example Observation file for Tidbinbilla service spectroscopy
# -------------------------------------------------------------
# Version 1.0: Jim Lovell  26-July-2002
# Version 1.1: Jim Lovell  8-Sep-2003
#              Added comments on bandwidth (whoops!) and SCHED mode
#
# Comments may be entered by placing a "#" in the first column.
#
# Each line of the observe file defines a single observation. Normally the
# observing software optimises the order of observation according to source
# proximity and elevation but this can be overridden by adding a line at the 
# top of the file with the word "SCHED" in upper case. This can be useful 
# for mapping or for non-supported pointing modes.
#
# Description of fields:
#
# Obs Code         = observation code (tnnnn)
#
# Src              = source name (no spaces allowed!)
#
# RA (J2000)       = RA and Dec in J2000 coords. Use colons to 
# Dec(J2000)         separate hrs, mins, secs and deg, min, sec
#
# Vel or z         = heliocentric velocity (km/s) or redshift
#
# LSR, Helio or z? = "L" if it's LSR velocity, "H" for a heliocentric 
#                     velocity and "Z" if it's a redshift. 
#
# No IF = number of IFs (1 or 2, must be 1 if dual pol)
#
# No Pol = number of polarisations ("1" = DAS inputs 1 and 2 are X, 
#                                   "2" = DAS input 1 is X and 2 is Y)
#
# rest freq1 = Rest freq (MHz) in IF1
#
# rest freq2 = Rest freq (MHz) in IF2 (set to 0.0 if no 2nd IF)
#
# BW1 = bandwidth of IF1
#
# BW2 = bandwidth of IF2 (set to 0.0 if no 2nd IF)
#
# Time = Time needed ON SOURCE (min)
#
# Cor config = correlator config file
#
# No Avg = number of integrations to average before writing
#
# Pos switch = position switching
#     where 0 = no position switching
#           4 = 4-point switching 
#                 (+(RA_offset), on_src, on_src, -(RA_offset)
#           8 = 8-point switching
#                 (where (x,y) = (1,0), (0,0), (0,1), (0,0), (-1,0), (0,0), (0,-1), (0,0) * offset)
#
# Freq switch = frequency switching (0 = off, 1 = on)
#
# Pos offs = position offset in arcminutes for position switching
#
# Freq offs = (in MHz) if frequency switching, offsets will be at +/- this value. If
#	      Freq switch = 0, and Freq offs != 0 then a constant offset will be applied to all spectra.
#
# Pos time = (in min) Time spent at each position offset. 
#            Must be evenly divisible into time on source ("Time")
#
# Freq time = (in min) Time spent at each frequency offset. 
#             Must be evenly divisible into time on source ("Time")
#
# Dop track = Doppler tracking (0 = off, OP = on using optical definition,
#             RA = on using radio definition,
#             RE = on using relativistic velocity).
#             Frequency is updated for every scan/freq-offset
#
# Status: todo = To do (observation not yet made)
#         done = Observation complete
#         part = Observations partially complete. May need further observation
#
# The remainder of the line is ignored but may be used for comments
#
# Obs   Src   RA (J2000)  Dec (J2000)   vel  H,L  No  No  rest     rest    BW1   BW2   Time    Cor            No    Pos    Freq    Pos  Freq  Pos   Freq Dop    status
#Code                                  or z or z  IF  Pol freq1    freq2   (MHz) (MHz) (min)  config          Avg   switch switch  offs offs  time  time track       
#
t0000 G240.316 07:44:51.98 -24:07:42.0 63.0   L   2   1  1665.402  1667.359  2.0   2.0  20.0 das_xxxx_2_4096  12     4      0      10.0 0.1   10.0  0.0  RA     todo 
#
#
# The above describes an observation of a source with a LSR velocity
# of 63 km/s.  IF1 will observe the 1665.402 OH transition and IF2
# will observe the 1667.359 OH transition. Both IFs will have
# bandwidths of 2 MHz and 4096 channels per band. A total of 20 min
# will be spent on source. Position switching will be used in mode 4
# with 10 arcmin offsets and 10 min spent at each position. Frequency
# switching will not be used but an offset of 0.1 MHz will be applied
# to avoid a birdie in the central channel. Doppler tracking is
# switched on and 12 integration cycles will be averaged together at a
# time.