Sunday, November 5, 2017

October was a Busy Month for Expedition 53

Astronaut Mark Vande Hei on EVA during one of the first two spacewalks in October. (NASA)

While science experiments and observations continue onboard the International Space Station, so does the unending resupply and maintenance of equipment. This month saw the crew perform three spacewalks working on the robotic arm, and a supply mission docking from Russia.
Astronauts Randy Bresnik and Mark Vande Hei making it look easy.

The spacewalk series was interrupted by the Progress docking, so let's start with the October 5th EVA. Expedition 53 Commander Randy Bresnik and astronaut Mark Vande Hei  began the triple EVAs with a 6 hour and 55 minute walk to replace one of two Latching End Effectors (LEEs) on the robotic CanadArm2. The LEEs are designed to grapple objects before moving them. The astronauts also worked on some module insulation and cables.


The next EVA took place October 10th, again with Bresnik and Vande Hei. Over 6 hours and 26 minutes, they worked to lubricate the newly installed LEE, and then replaced a camera system on the end of the arm.

Russian Progress cargo spacecraft approaches the station near an already-docked Soyuz.

Before the astronauts could complete their 3rd EVA of October, Russia attempted to launch Progress 68P to the station to deliver supplies. The launch was scrubbed on October 12, due to faulty  equioment on the launch pad at Baikonur in Kazakhstan. The problem was quickly fixed and a second attempt to launch was more successful on October 14. Instead of flying a shortened 6-hour flight to the ISS, ground controllers used a older 2-day approach plan for the craft. It arrived at the ISS on October 16th. The craft (also known as Progress MS-07) docked at the Russian-made Pirs module. 

Astronauts Mark Vande Hei and Pauolo Nespoli (ESA) help Joe Acaba move into the airlock.
 
The final EVA of October took place on the 20th, and lasted 6 hours and 49 minutes. They attached another camera to the CanadArm2, and completed some minor work. The EVA made the 5th spacewalk for Randy Bresnik and the 3rd for Joe Acaba,
The next major event for Expedition 53 will be a launch of Orbital ATK's Cygnus supply mission.

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