These comments apply to the HST Call for Proposals dated May 1990.

page 3, table 2-1: change HSP version from 1.1 to 3.0

page 30, table 11-1(c): delete 0.4" aperture
(limiting mag is still about correct -- jwp)

page 34: delete reference to 0.4" apertures
	 change 50,000 per second to 80,000 per second
	 replace sentence starting "Brighter stars..." with:

	 Stars brighter than about 4th magnitude will exceed the
	 10 microamp maximum detector photocurrent when viewed
	 through the unfiltered target acquisition apertures.
	 Targets this bright will therefore be difficult to acquire.

page 37, item 5: Target acquisition limit is about V=4

page 40, table 13-1: remove reference to 0.4" apertures

page 48: choose new STScI contact?