alb@alice.UUCP (09/02/83)
Truly yesterday fired the orbiting maneuvering engines to lower the Challenger's orbit from 193 to 139 miles. The planned lowering is to allow the shuttle to pass through a dense layer of atomic oxygen particles to see how they will erode several samples of different surfaces, from paint to telescope lenses, that will be used in future flights. I erroneously reported the landing time of the shuttle as 0340 EDT on the 5th. It will be at 0323 EDT.