The Space Shuttle Columbia awaits liftoff on the fourth flight of the United States Microgravity Payload and the Spartan-201 deployable satellite.

The crew of Mission STS-87 depart from the Operations and Checkout Building en route to Launch Pad 39B, where the Space Shuttle Columbia awaits liftoff on the fourth flight of the United States Microgravity Payload and the Spartan-201 deployable satellite. Leading the way are, from left to right, front to back: Mission Specialist Kalpana Chawla, Ph.D.; Commander Kevin Kregel; Mission Specialist Takao Doi, Ph.D., of the National Space Development Agency of Japan; Mission Specialist Winston Scott; Payload Specialist Leonid Kadenyuk of the National Space Agency of Ukraine; and Pilot Steven Lindsey. The Space Shuttle Columbia and its crew of six members are scheduled to lift off during a two-and-a-half hour launch window, which opens at 2:46 p.m