Dragon Resupply Ship Leaves Station, Heads for Pacific Splashdown
The SpaceX Dragon cargo spacecraft released from the International Space Station at 12:01 p.m. EDT after flight controllers in Houston delivered remote commands to the station’s Canadarm2 robotic arm. Expedition 59 Flight Engineer David Saint-Jacques of the Canadian Space Agency monitored Dragon’s systems as it departed the microgravity laboratory.
Next up, Dragon will fire its thrusters to move a safe distance from the station and execute a deorbit burn around 4:56 p.m. to leave orbit. Splashdown down is targeted for approximately 5:55 p.m. EDT (2:55 p.m. PDT).
Dragon was detached from the Earth-facing port of the Harmony module at 8:30 a.m. after flight controllers at mission control in Houston delivered remote commands to the station’s Canadarm2 robotic arm. Expedition 59 Flight Engineer David Saint-Jacques of the Canadian Space Agency will back up the operation and monitor Dragon’s systems as it departs the orbital laboratory.
After firing its thrusters to move a safe distance away from the station, Dragon will execute a deorbit burn around 4:56 p.m. to leave orbit, as it heads for a parachute-assisted splashdown in the Pacific Ocean, 202 miles southwest of Long Beach, California, at approximately 5:48 p.m. (2:48 p.m. PDT). There will be no live coverage of deorbit burn or splashdown.
Dragon launched on the SpaceX Falcon 9 rocket May 4 from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida, and arrived at the station two days later with almost 5,500 pounds of science, supplies and cargo on SpaceX’s 17th commercial resupply mission to the station for NASA.
NASA TV is broadcasting the robotic release of Dragon from the station live on NASA TV beginning Monday at 11:45 a.m. EDT. Robotics controllers will command the Canadarm2 robotic arm to release the space freighter around 12:09 p.m. while astronaut David Saint-Jacques monitors from the cupola. Dragon will splashdown in the Pacific about 5:48 p.m. and will not be seen on NASA TV.
Several critical experiments have wrapped up aboard the orbiting lab with the completed results and hardware being packed inside the Dragon this weekend. After the space freighter splashes down Monday, it will be towed to shore where the finalized research will be distributed to labs around the world for analysis.
The pair first joined Flight Engineer Nick Hague during the morning checking out space biology hardware and transferring more frozen research samples into Dragon’s science freezers. Hague and McClain then participated in regularly scheduled eye exams in the afternoon.
Light Science Duties as Crew Sleeps in After Spacewalk
The six-member Expedition 59 crew had a chance to sleep in the day after wrapping up a successful spacewalk on the Russian side of the International Space Station. The cosmonauts are cleaning up this afternoon from yesterday’s excursion while the rest of the orbiting crew focuses on exercise research and other light science duties.
Flight Engineers Anne McClain and David Saint-Jacques checked on a couple of life science experiments during their relaxed afternoon. McClain updated software for the Photobioreactor study exploring how microalgae can create a hybrid life support system for astronauts and Earthlings. Saint-Jacques turned off and stowed the Canadian Bio-Monitor device that can quickly analyze human biological samples in space.
The two cosmonauts opened the hatch to the Pirs docking compartment to begin the spacewalk at 11:42 a.m. EDT. They re-entered the airlock and closed the hatch at 5:43 p.m.
During the spacewalk, the duo completed the planned tasks, including installing a handrail on the Russian segment of the complex, retrieving science experiments from the Poisk module’s hull; removing and jettisoning the plasma wave experiment hardware; and conducting maintenance work on the orbiting laboratory, such as cleaning the window of the Poisk hatch.
The spacewalk was the 217th in support of station assembly, maintenance and upgrades and the fourth outside the station this year.
This was the fifth spacewalk in Kononenko’s career and the first for Ovchinin, who will become station commander next month. Kononenko is scheduled to return to Earth June 24, with crewmates Anne McClain of NASA and David Saint-Jacques of the Canadian Space Agency, wrapping up a six-and-a-half-month mission living and working in space.