Feeds

Minor CO2 issue cuts short ISS spacewalk

'Potential problem' with spacesuit scrubber

Secure remote control for conventional and virtual desktops

Mission specialists Chris Cassidy and Dave Wolf yesterday cut short the third STS-127 International Space Station spacewalk, due to "higher than normal carbon dioxide levels" in the former's spacesuit.

The minor alert, prompted by a "potential problem ... with the carbon dioxide scrubbing device", meant the pair had to return to the ISS half an hour earlier than planned, after five-hours and 59 minutes working outside the orbiting outpost.

The two "removed multilayer insulation from the Kibo module and readied the Japanese Exposed Section payloads for their transfer to the Exposed Facility", but completed just two of six planned battery* replacements on the Port 6 (P6) solar array.

NASA says the remaining four will be swapped during the fourth planned spacewalk on Friday. ®

Bootnote

*NASA explains that each battery comprises "thirty-eight individual pressure vessel (IPV) nickel hydrogen (NiH2) battery cells are connected in series and packaged in a Battery ORU" - an Orbital Replacement Unit "designed to allow simple removal and replacement while in orbit".

It adds: "Two ORUs are connected in series, utilizing a total of 76 cells to form one battery."

Six such batteries are packed into the P6 Integrated Equipment Assembly (IEA), which launched on launched on 30 November 2000. NASA says the batteries have a design life of six-and-a-half years.

In case you're wondering how much juice an ISS battery packs, each is expected "to deliver more than 25 Amps in a low-demand orbit to as high as 75 Amps to meet short peaking load requirements at a battery operating voltage range of 76 to 123 V dc".

Next gen security for virtualised datacentres

More from The Register

next story
Gigantic toothless 'DRAGONS' dominated Earth's early skies
Gummy pterosaurs outlived toothy competitors
Vulture 2 takes a battering in 100km/h test run
Still in one piece, but we're going to need MORE POWER
TRIANGULAR orbits will help Rosetta to get up close with Comet 67P
Probe will be just 10km from Space Duck in October
Boffins ID freakish spine-smothered prehistoric critter: The CLAW gave it away
Bizarre-looking creature actually related to velvet worms
CRR-CRRRK, beep, beep: Mars space truck backs out of slippery sand trap
Curiosity finds new drilling target after course correction
'Leccy racer whacks petrols in Oz race
ELMOFO rakes in two wins in sanctioned race
What does a flashmob of 1,024 robots look like? Just like this
Sorry, Harvard, did you say kilobots or KILLER BOTS?
NASA's rock'n'roll shock: ROLLING STONE FOUND ON MARS
No sign of Ziggy Stardust and his band
Why your mum was WRONG about whiffy tattooed people
They're a future source of RENEWABLE ENERGY
prev story

Whitepapers

5 things you didn’t know about cloud backup
IT departments are embracing cloud backup, but there’s a lot you need to know before choosing a service provider. Learn all the critical things you need to know.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.