FOS Instrument Science Report #110

"Location of FOS Spectra: Cycle 3 Results"
by Anuradha Koratkar

Abstract excerpted from the report:
	The optimal locations of the FOS spectra were determined for all non-
	polarized grating/detector combinations using calibration maps obtained
	during Cycle 3 (proposal ID 5053).  Cycle 1 and 2 data showed that
	there is a trend in the positions of the spectra for all gratings with
	a red dectector are relatively stable.  The Cycle 3 data show that this
	trend still exists.  The photometric error due to the new optimal
	locations of the spectra (YBASES) determined during the analysis will 
	be <2%, hence the YBASE values in the Project Data Base (PDB) were not 
	updated.



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