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ralfvandebergh

STS-119 spacewalker seen from Earth

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Sent: Thursday, December 10, 2009 7:30 PM

Subject: Fw: STS-119 spacewalker from Earth, new processings

STS-119 spacewalker: new interesting processings

http://www.startje.be/vieuw.php?qid=335219

http://ralfvandebergh.startje.be/vieuw.php?qid=303316

It was March of this year when I managed to capture that spacewalk pic. Some of you may remember. But I'm a new member of this group)

A short summery: During the STS-119 mission to the ISS, it was during EVA-2 on March 21, with the

spacewalkers Steve Swanson and Joe Acaba. They were at the moment of pass over Europe working

at the Port 3 truss. It was great luck they were working on the Earth-facing side, for the deployment

of the nadir UCCAS (Unpressurized Cargo Carrier Attachment System) during the pass.

Exactly at the work-location, a light detail appeared in the frames taken in the best moments of seeing.

Analysing carefully video recording data from the helmet cams of the spacewalkers it became clear the

spacewalker located mostly Earth-faced should be Joe Acaba.

To find out the point of pass over the observing location in the NASA-recordings, the point of

sunset in both the recordings from the station and the observing location was a great help.

The result shown here (attached) is accomplished from new processing of the best frames taken

7 seconds later then the early image, see here: http://apod.nasa.gov/apod/ap090410.html

All necessary data is on the image. With some imagination you may be able to see

even the back of the white-suited spacewalker, see the inset.

Take the time to watch it carefully and enjoy!

Best wishes,

Ralf

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