TL;DR: The first Space Shuttle rendezvous missions were accomplished in support of the successful Solar Maximum Mission satellite retrieval and repair, the retrieval and return of two communication satellites, and the rendezvous with the Syncom IV-3 satellite.
Abstract: The onboard rendezvous navigation software for Shuttle flight 41-C are described. Particular attention is given to the inputs, models, and outputs of the software. The performance of the rendezvous navigation system is compared to predicted performance profiles in connection with the relative vehicle geometry, as well as the location of the navigation sensor tracking arcs. The methods used to process navigational sensor measurements in order to update the state vector are also summarized. A table listing the sources of maneuver targeting errors is provided.