Sequencer Site SIRTF IOC Activity c. 2002

Execute MIPS SED AOT for a sensible range 
of parameters with a bright point source 
(~1 Jy flux standard at 70 microns) as the 
target.  Valuable diagnostics on SED-mode 
performance and calibration can be gained if 
the chosen target is a flux calibtation star.

The SED AOT front end allows two integration 
times (3 and 10 seconds) as well as 4 different 
chop configurations (1, 2, 3, and -1 arcminutes). 
For a skeleton AOT, I would like to test both 
integration times, all chop configurations, and 
multiple cycles in one of those chop 
configurations and in both integration times 
(to look for any timing problems).

Because the useful SED range is little more 
than 3 arcminutes, the on-source position 
can't be in the same place for both positive 
and negative chops (i.e., to get all the way 
from -1 arcminutes to +3, we'd need a 
4-arcminute range). I have chosen to make 
the on-source position the same for all the 
positive chops (at 3100 SCANABS counts) and 
to move the on-source position for the -1 
arcminute chop to the sky position for the 
+1 arcminute chop (at 3204 SCANABS counts).  
Thus, the S/C will have to maintain two 
different locations for SED mode:  1 for 
positive chops and 1 for negative chops.

Tests to run:

AT ON-SOURCE POSITION 1:
1) chop=1, itime=3, cycles=1 (mips_sed_itime3_chop1_cycle1.exp)
2) chop=1, itime=10, cycles=1 (mips_sed_itime10_chop1_cycle1.exp)
3) chop=1, itime=3, cycles=7 (mips_sed_itime3_chop1_cycle7.exp)
4) chop=1, itime=10, cycles=7 (mips_sed_itime10_chop1_cycle7.exp)
5) chop=2, itime=3, cycles=1 (mips_sed_itime3_chop2_cycle1.exp)
6) chop=3, itime=3, cycles=1 (mips_sed_itime3_chop3_cycle1.exp)

AT ON-SOURCE POSITION 2:
7) chop=-1, itime=3, cycles=1 (mips_sed_itime3_chop-1_cycle1.exp)

Conditions