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Hot Topic Exploration Missions Cygnus Arrives at Station on Orbital-1 Mission
 
Cygnus Arrives at Station on Orbital-1 Mission
Source: NASA
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Missions
Posted:   01/16/14

Summary: Last Sunday, Orbital Sciences Corp. Cygnus commercial cargo craft arrived at the International Space Station on its first resupply mission.


The Orbital Sciences Corp. Cygnus commercial cargo craft attached to the end of the Canadarm2 robotic arm of the International Space Station is photographed by an Expedition 38 crew member during rendezvous and berthing operations on Jan. 12, 2014. Credit: NASA
Orbital Sciences Corp. Cygnus commercial cargo craft has arrived at the International Space Station on its first resupply mission. NASA astronaut Mike Hopkins was at the controls of the Canadarm2 inside the cupola when he grappled Cygnus at 6:08 a.m. EST Sunday.

Japanese astronaut Koichi Wakata commanded the station’s robotic arm to guide Cygnus to the Earth-facing port of the Harmony node and berthed it at 8:05 a.m. Expedition 38 Flight Engineer Rick Mastracchio then led the effort to get Cygnus bolted and latched to Harmony’s common berthing mechanism.

Learn more about the science aboard Cygnus

After the new commercial cargo craft was attached to Harmony, Wakata began leak checks in the vestibule, or the area between the docked vehicle and the space station. Working well ahead of schedule, Hopkins and Mastracchio opened the hatch to the Cygnus cargo craft at 12:17 p.m. beginning five weeks of cargo transfer activities.

Orbital Sciences' Cygnus commercial resupply craft is on its final approach before being captured. Credit: NASA TV
All three astronauts monitored the approach and rendezvous of Cygnus from inside the cupola. The trio was at the robotics workstation looking out the cupola’s seven windows, observing video display monitors and checking real-time data.

The Antares rocket carrying the Cygnus resupply craft launched Thursday at 1:07 p.m. from Wallops Flight Facility in Virginia and reached orbit 10 minutes later. Cygnus arrived on time at the station despite solar flux activity delaying its launch one day. The increased radiation from the solar flares could potentially have affected the spacecraft’s avionics. Flight controllers reported the six station residents were safe during the solar event that occurred Tuesday.

Read about last week’s Orbital-1 launch

Orbital Sciences Corp. launched its Cygnus cargo spacecraft aboard its Antares rocket at 1:07 p.m. EST Thursday, Jan. 9, 2014, from the Mid-Atlantic Regional Spaceport Pad 0A at NASA’s Wallops Flight Facility in Virginia. Credit: NASA
Mission controllers from Orbital Sciences guided Cygnus toward the station during its three-day trip. Once Cygnus came within range of the station Houston and Japanese mission controllers began joint operations with Orbital Sciences. NASA tracked the vehicle during its final approach. The Japan Aerospace Exploration Agency supported Cygnus’ final rendezvous with the station using the Kibo laboratory’s rendezvous gear.

The Cygnus cargo vehicle consists of two modules. The service module provides attitude control, propulsion, navigation, electrical power and contains the solar arrays. The pressurized cargo module, which comprises the majority of the vehicle, provides the space for delivering cargo and logistics. However, there is no capacity for the recovery of cargo as the vehicle is intended for a destructive reentry over the Pacific Ocean Feb. 19. It will be unberthed and released from the station Feb. 18.

Read about the expedition's update

Orbital Sciences conducted a demonstration mission in September when its first Cygnus commercial resupply craft arrived at the station Sept. 29. The Cygnus delivered 1,300 pounds of non-critical gear, then was reloaded with trash and left the station Oct. 22 for a fiery destruction over the Pacific Ocean.


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