First flight of the orbiter Challenger.

First Tracking and Data Relay Satellite deployed on the first day of the mission.

First "spacewalk" of the Shuttle program successfully performed by Peterson and Musgrave.

EVA lasted four hours 17 minutes. Space Shuttle Challenger landed April 9, at 10:53 AM PST at Edwards Air Force Base, CA.

Mission duration: five days, 24 minutes, 32 seconds. Challenger traveled 2 million miles in 80 orbits.

Launch Date: April 4, 1983 at 1:30 PM EST

Launch Vehicle: Challenger

Crew:

Commander: Paul Weitz

Pilot: Karol J. Bobko

Mission Specialists: Donald H. Peterson, Dr. F. Story Musgrave