alb@alice.UUCP (06/04/83)
At 1100 EDT yesterday, NASA computers thought the Challenger was blasting off. Right on schedule, NASA held the normal pre-launch mock-launch, with all five STS-7 astronauts aboard. Later, NASA said the mock launch was a total success and that the preparations for an 18 June launch were right on schedule. Later this weekend or this coming week, workers will close the shuttle's cargo bay doors and installed explosive devices used to jettison the SRB's and external tank.