I was reading the Mission Safety Evaluation Report for STS-32 and I noticed the following passage:
The STS-32 rendezvous was one of the most complex the Space Shuttle had ever attempted, requiring 11 major firings of Columbia's maneuvering engines.
That seems pretty high to me. Now my space flight experience only extends to Kerbal, but through those simulations I found that you can generally get into any rendezvous orbit in just 4-5 burns. Why did it take 11 this time?