Sunday, July 15, 2018

'S.S. J.R. Thompson' Departs International Space Station and Successfully Completes ISS Reboost

From May 24, 2018 when the CRS-9 “S.S. J.R. Thompson” Cygnus arrived at the International Space Station and delivered approximately 7,400 pounds of cargo to astronauts on board. The spacecraft successfully departed from the station on July 15. Credit: Northrop Grumman Corporation

Northrop Grumman Corporation announced that its Cygnus spacecraft, following a highly successful stay at the International Space Station, has departed from the station to begin the next phase of its mission.

While docked with the station, Cygnus performed a reboost experiment for the International Space Station demonstrating the spacecraft’s capability to raise the orbiting laboratory’s orbit. The “S.S. J.R. Thompson” is now set to deploy six CubeSats in orbit before reentry into the Earth’s atmosphere. This mission marks the fifth time that Cygnus has been used for NanoRacks CubeSat deployments during its secondary payload mission phase.

Cygnus departed from the International Space Station at 8:37 a.m. ET. Five days before departure, the space station reoriented itself and Cygnus fired its thrusters for the International Space Station reboost demonstration, making Cygnus the first American spacecraft to reboost the station since the retirement of the Space Shuttle fleet seven years ago. The spacecraft spent 52 days at the station before leaving with more than 6,600 pounds (over 3,000 kilograms) of disposable cargo, a new record for Cygnus.

“This mission once again demonstrates the expanded capabilities for Cygnus and paves the way for future mission objectives,” said Frank Culbertson, president, space systems group, Northrop Grumman. “Cygnus performed extremely well during the International Space Station orbit raising experiment, and now the next phase of our extended orbital mission is ready to begin with the deployment of six CubeSats.”

The mission began May 21 when Cygnus launched aboard a Northrop Grumman Antares™ rocket from NASA’s Wallops Flight Facility in Virginia. Upon arrival at the orbiting laboratory, Cygnus delivered approximately 7,400 pounds (3,350 kilograms) of cargo and science experiments to the astronauts, marking the company’s ninth operational mission to the International Space Station.

Following unberthing, the “S.S. J.R. Thompson” will raise its orbit above the International Space Station and use a NanoRacks CubeSat deployer to release six CubeSats into orbit. Four of the CubeSats will join Spire Global’s commercial weather satellite constellation for global ship and weather tracking. The NanoRacks manifest also includes the AeroCube 12A and 12B satellites. These two CubeSats come from the Aerospace Corporation and test new star tracker imagers and high-efficiency solar panels.

The mission is expected to end July 30 when Cygnus will execute a safe, destructive reentry into the Earth’s atmosphere over the Pacific Ocean.

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