Astronauts guide the Boeing spacecraft to orbital connection with the International Space Station
A combination of sensors, automatic steering and the careful gaze of two astronauts worked together to make history Thursday, June 6, by guiding Boeing’s CST-100 Starliner to its first docking to the International Space Station (ISS) while carrying astronauts. Crew Flight Test (CFT) Commander Butch Wilmore and pilot Suni Williams became the first of what is expected to be dozens of astronauts who will fly aboard Starliner on crew-rotation missions to the orbital laboratory complex.
The docking capped a precisely choreographed flight plan that saw the Boeing-owned and -operated spacecraft lift off Wednesday precisely at 10:52 a.m. Eastern time from Space Launch Complex 41 in Florida. Starliner began a planned series of thruster firings to first lift Starliner’s orbit and then refine its track to the space station.
Wilmore and Williams performed some manual steering and navigation checks on Starliner throughout the flight to station to confirm the systems operated properly. They also demonstrated the spacecraft’s manual control system, which allows an astronaut to take over all of Starliner’s operations, if needed. Equipped with cutting-edge sensors and complex flight computers, Starliner carried out the maneuvers autonomously while its crew evaluated every step and stood ready to jump into the process if needed.
Starliner progressively caught up to the station then moved ahead of it, lining itself up perfectly with the forward port of the ISS.
“It’s nice to be attached to the big city in the sky,” Wilmore said as the Starliner made contact with the space station. “It’s a great place to be. We are looking forward to … getting all the things done in Starliner we need to get done and also on station.”
Starliner is designed to fit a maximum crew of seven, though future NASA missions will carry a crew of four to five.
This flight test is being carried out with two people aboard to prove all the systems operate as expected. Confirming a raft of sensors and systems perform correctly is, in fact, the prime task for Wilmore and Williams during the eight to 10 days they are at the ISS. They will also unpack a number of cargo containers in orbit and move them into the station before boarding Starliner again for the return flight to a landing on land in the American southwest.
“We’ve had an ideal start for this flight test that our team has been working toward for some time,” said Boeing’s Mark Nappi, program manager for Starliner. “We are going to be careful with this spacecraft, making sure we are listening to what its systems are telling us. So far, Starliner is telling us everything we want to hear, but we are not taking anything for granted.”
After concluding a number of procedures to connect the Starliner’s systems fully with the ISS, Wilmore and Williams opened the Starliner hatch and joined the seven ISS crew members inside the sprawling, million-pound complex.
“Butch and Suni, we are glad to see you,” said Oleg Kononenko, the current ISS commander, as Wilmore and Williams floated through the hatch into the main part of the station. “We want to congratulate the whole team … for launch, for docking. Very happy.”
“We are just as happy as can be to be up in space, one in Starliner, in on Atlas 5, and then here on the International Space Station,” Williams said. “It just doesn’t get much better.”