Russian Cargo Ship Leaves, Crew Tests Dragon’s Comfort Factors

The Expedition 63 crew has expanded to five members with the arrival of the SpaceX Crew Dragon. (From left) Anatoly Ivanishin, Ivan Vagner, Chris Cassidy, Bob Behnken and Doug Hurley. (Credit: NASA TV)

HOUSTON (NASA PR) — Russia’s Progress 74 (74P) cargo craft departed the International Space Station today leaving four spaceships from the U.S., Russia and Japan parked at the orbital lab. It will be replaced in two weeks when the Progress 76 arrives to replenish the crew.

The 74P undocked today at 2:23 p.m. EDT after seven months attached to the Pirs docking compartment. The trash-packed resupply ship will descend into Earth’s atmosphere above the South Pacific for a fiery but safe demise. The 76P will take its place when it launches on July 23 at 10:26 a.m. and docks just three-and-a-half hours later to Pirs.

Four out of the five Expedition 63 crew members assessed comfort factors inside the docked SpaceX Crew Dragon today. This is a demonstration of the Crew Dragon’s habitability ahead of the SpaceX Crew-1 mission planned for later this year.

NASA astronauts Doug Hurley and Bob Behnken, who piloted the Crew Dragon, will be joined by station Commander Chris Cassidy and Flight Engineer Anatoly Ivanishin for the one-hour habitability test. The crew will arrange the cabin to suit the four space residents and report their comfort levels to engineers on the ground.

While they were setting up Crew Dragon for the test, the three NASA astronauts also had time for ultrasound eye scans, microfluid studies and orbital plumbing work. The two cosmonauts, including Flight Engineer Ivan Vagner, juggled a variety of Russian space research and tested Soyuz crew ship communications gear.

SpaceX Launches Dragon Resupply Ship to International Space Station

Falcon 9 launches the CRS-19 mission. (Credit: SpaceX webcast)

A SpaceX Falcon 9 rocket successfully launched a Dragon resupply ship with approximately 5,700 pounds of cargo for astronauts on the International Space Station (ISS).

The booster lifted off at 12:29 EST from Space Launch Complex 40 (SLC-40) at the Cape Canaveral Air Force Station in Florida. Dragon separated from the second stage and deployed its solar arrays to begin a 2.5 day trip to space station.

This is SpaceX’s nineteenth Commercial Resupply Services mission under a contract with NASA. The Dragon spacecraft has previously flown on two previous resupply missions to ISS.

Falcon 9’s first stage successfully landed on the Of Course I Still Love You drone ship. The landing marked the 46th successful recovery of a Falcon first stage.

The launch was the first of two resupply missions in less than 24 hours. Roscosmos will launch the Progress 74 cargo ship on Friday.

NASA TV’s coverage of the two missions is below.

Upcoming NASA TV Live Events (All Times Eastern)

Friday, Dec. 6, 4:15 a.m.: NASA TV coverage of Russian Progress 74 cargo spacecraft launch to International Space Station. Launch is scheduled for 4:34 a.m. from the Baikonur Cosmodrome in Kazakhstan.

Sunday, Dec. 8: SpaceX CRS-19 Dragon cargo spacecraft rendezvous, grapple and attaching to the International Space Station.

Sunday, Dec. 8: SpaceX CRS-19 Dragon cargo spacecraft installation to the International Space Station. Dragon will be installed to the nadir port of the Harmony module of the station.

Monday, Dec. 9, 4:45 a.m.: NASA TV coverage of Russian Progress 74 cargo spacecraft docking to International Space Station. The spacecraft is expected to dock to the Pirs compartment on the station’s Russian segment at 5:38 a.m.