NASA TV Live Now as Dragon Crew Prepares for Undocking
NASA’s first commercial crew astronauts (front to back) Doug Hurley and Bob Behnken are pictured in January during tests inside the SpaceX Crew Dragon vehicle. Credit: SpaceX
SpaceX and NASA are targeting 7:34 p.m. EDT for Crew Dragon to autonomously undock from the space station, with Behnken and Hurley aboard the spacecraft, and return to Earth. Approximately 19 hours later, after jettisoning its trunk and re-entering Earth’s atmosphere, Crew Dragon will splash down in the Gulf of Mexico off the coast of Florida at 2:48 p.m. EDT on Sunday, August 2. The primary splashdown target is Pensacola.
Hurley and Behnken arrived at the orbiting laboratory in the Crew Dragon May 31 following a launch from NASA’s Kennedy Space Center in Florida on May 30. This is SpaceX’s final test flight and is providing data on the performance of the Falcon 9 rocket, Crew Dragon spacecraft and ground systems, as well as in-orbit, docking, splashdown, and recovery operations.
NASA astronauts Bob Behnken (left) and Doug Hurley participate in a fully integrated test of SpaceX Crew Dragon flight hardware at the SpaceX processing facility in Florida on March 30.
Following a scheduled assessment of weather conditions for splashdown, teams from NASA and SpaceX are proceeding with preparations to bring NASA astronauts Robert Behnken and Douglas Hurley home to Earth aboard the SpaceX Crew Dragon “Endeavour” spacecraft.
Conditions are “Go” at the primary targeted site, off the coast Pensacola, and alternate site off the coast of Panama City in the Gulf of Mexico for splashdown and recovery on Sunday, Aug. 2. Teams will continue to closely monitor Hurricane Isaias and evaluate impacts to the potential splashdown sites.
SpaceX will monitor changes to conditions until 2.5 hours prior to the scheduled undocking, when a determination to proceed with departure will be made. If conditions are marginal and exceed the accepted criteria, a joint recommendation by SpaceX and NASA will be made whether to proceed with undocking at 7:34 p.m. EDT. NASA and SpaceX will make the final decision to proceed after the astronauts are ready inside Crew Dragon just before undocking.
Live coverage of NASA’s SpaceX Demo-2 return will begin at 5:15 p.m. and continue through the targeted splashdown at 2:41 p.m. on Sunday, the first return of a commercially built and operated American spacecraft carrying astronauts from the space station. It will wrap up NASA’s SpaceX Demo-2 test flight after more than two months at the International Space Station.
Hurley and Behnken arrived at the orbiting laboratory in the Crew Dragon May 31 following a launch from NASA’s Kennedy Space Center in Florida on May 30. This is SpaceX’s final test flight and is providing data on the performance of the Falcon 9 rocket, Crew Dragon spacecraft and ground systems, as well as in-orbit, docking, splashdown, and recovery operations.
The SpaceX Crew Dragon astronauts (front row, from left) Bob Behnken and Doug Hurley joined their Expedition 63 crewmates (rear, from left) Ivan Vagner, Chris Cassidy and Anatoly Ivanishin for a crew farewell ceremony Saturday morning. Credit: NASA TV
Teams from NASA and SpaceX are proceeding with preparations to bring NASA astronauts Robert Behnken and Douglas Hurley home from the International Space Station to Earth with a splashdown on Sunday, Aug. 2, off the Florida coast aboard the SpaceX Crew Dragon “Endeavour” spacecraft.
Return conditions remained “Go” at several of the needed target locations for splashdown and recovery after teams received a weather briefing Friday evening from the U.S. Air Force 45th Weather Squadron. NASA and SpaceX will make a decision on a primary splashdown target approximately 6 hours before undocking.
NASA and SpaceX are targeting 7:34 p.m. EDT Saturday, Aug. 1, for undocking of the Dragon “Endeavour” spacecraft from the space station and 2:42 p.m. Sunday, Aug. 2, for splashdown, which will be the first return of a commercially built and operated American spacecraft carrying astronauts from the space station.
Teams continue to closely monitor Hurricane Isaias and evaluate impacts to the landing sites in the Gulf of Mexico along the Florida Panhandle. Teams have several weather decision milestones ahead of and after undocking to adjust the splashdown location and time based on the forecasted conditions for recovery.
NASA’s SpaceX Demo-2 return coverage is as follows (all times Eastern):
Saturday, Aug. 1
5:15 p.m. – NASA TV undocking coverage begins for the 7:34 p.m. undocking (NASA Television will have continuous coverage from undocking to splashdown)
Sunday, Aug. 2
2:42 p.m. – Splashdown
5 p.m. – Administrator post-splashdown news conference at Johnson, with the following representatives:
NASA Administrator Jim Bridenstine
Commercial Crew Program representative
International Space Station representative
Gwynne Shotwell, president and chief operating officer, SpaceX
NASA Astronaut Office representative
Tuesday, Aug. 4
4:30 p.m. – Demo-2 Crew News Conference from the Johnson Space Center, with the following participants
NASA astronaut Bob Behnken
NASA astronaut Doug Hurley
Behnken and Hurley arrived at the orbiting laboratory on May 31, following a successful launch on May 30 on a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center in Florida. During their 63 days aboard station, Behnken and Hurley contributed more than 100 hours of time to supporting the orbiting laboratory’s investigations, participated in public engagement events, and supported four spacewalks with Behnken and Cassidy to install new batteries in the station’s power grid and upgrade other station hardware.
These activities are a part of NASA’s Commercial Crew Program, which has been working with the U.S. aerospace industry to launch astronauts on American rockets and spacecraft from American soil the International Space Station for the first time since 2011. This is SpaceX’s final test flight and is providing data on the performance of the Falcon 9 rocket, Crew Dragon spacecraft and ground systems, as well as in-orbit, docking, splashdown and recovery operations.
The test flight also is helping NASA certify SpaceX’s crew transportation system for regular flights carrying astronauts to and from the space station. SpaceX is readying the hardware for the first rotational mission, which would occur following NASA certification.
The goal of NASA’s Commercial Crew Program is safe, reliable and cost-effective transportation to and from the International Space Station. This could allow for additional research time and increase the opportunity for discovery aboard humanity’s testbed for exploration, including helping us prepare for human exploration of the Moon and Mars.
NASA astronaut pictured tethered on the space station’s truss structure during a spacewalk to swap batteries and route cables.
NASA astronauts Chris Cassidy and Robert Behnken concluded their spacewalk at 1:10 p.m. EDT, after six hours. The two NASA astronauts completed all the work to replace batteries that provide power for the station’s solar arrays on the starboard truss of the complex. The new batteries provide an improved and more efficient power capacity for operations.
The spacewalkers removed six aging nickel-hydrogen batteries for the second of two power channels for the starboard 6 (S6) truss, installed three new lithium-ion batteries, and installed the three associated adapter plates that are used to complete the power circuit to the new batteries. Mission control reports that all three new batteries are working.
The work nearly completes a 3.5-year effort to upgrade the International Space Station’s power system. At completion, 24 new lithium-ion batteries and adapter plates will replace 48 aging nickel-hydrogen batteries. In April 2019, one of the newly installed lithium-ion batteries on the near port truss blew a fuse, so two nickel-hydrogen batteries were re-installed to take its place. A new replacement lithium-ion battery arrived to the space station in January 2020 aboard the SpaceX Dragon on its 19th commercial resupply services mission and is stowed on the station’s truss until it can be installed during a future spacewalk later this year.
Behnken and Cassidy are scheduled to conduct one more spacewalk Tuesday, July 21, during which they will remove two lifting fixtures used for ground processing of the station’s solar arrays prior to their launch. They’ll also begin preparing the Tranquility module for the installation of a commercial airlock provided by NanoRacks and scheduled to arrive on a SpaceX cargo flight later this year. The airlock will be used to deploy commercial and government-sponsored experiments into space.
This was the ninth spacewalk for each astronaut. Behnken has now spent a total of 55 hours and 41 minutes spacewalking. Cassidy now has spent a total of 49 hours and 22 minutes spacewalking.
Space station crew members have conducted 230 spacewalks in support of assembly and maintenance of the orbiting laboratory. Spacewalkers have now spent a total of 60 days, 6 hours, and 34 minutes working outside the station.
NASA astronaut and Expedition 63 Flight Engineer Bob Behnken works during a spacewalk to swap an aging nickel-hydrogen battery for a new lithium-ion battery on the International Space Station’s Starboard-6 truss structure.
NASA astronauts Robert Behnken and Chris Cassidy have begun the first of two final spacewalks to finish a 3.5-year effort to upgrade the International Space Station’s power system. They will replace batteries on one of two power channels on the station’s far starboard truss (S6 Truss).
The spacewalkers switched their spacesuits to battery power at 7:10 a.m. EDT to begin the spacewalk, which is expected to last between six and seven hours.
The spacewalkers will be removing five existing nickel-hydrogen batteries and replacing them with three new lithium-ion batteries that arrived on a Japanese cargo ship last month. The batteries store electricity for one pair of the station’s solar arrays, and the swap will upgrade the station’s power supply capability. The batteries store power generated by the station’s solar arrays to provide power to the microgravity laboratory when the station is not in sunlight as it circles Earth during orbital night.
This is the 230th spacewalk in support of space station assembly and maintenance. Behnken is extravehicular crew member 1 (EV 1), wearing the spacesuit with red stripes, and using helmet camera #20. Cassidy is extravehicular crew member 2 (EV 2), wearing the spacesuit with no stripes and helmet camera #18. It is the ninth spacewalk for both astronauts.
