Posted tagged ‘observations’

Observation Log 9/9/09: ISS/Discovery overflight, with a frightening surprise

September 9, 2009

Discovery passed almost directly overhead tonight, with the ISS following 27 seconds later. Thankfully Jan was there to share it, and to witness something we’ve never seen before or probably will see again.

Just as Discovery passed straight overhead, a plume of white, faintly colorful reflections appeared right around it, and expanded for about ten seconds, dimming as it grew with the shuttle still in the middle. It was still faintly visible when it was about 1/2° across, or about the apparent size of the full moon. My immediate thought was something had gone terribly wrong. After a moment I realized we’d probably seen the Orbital Maneuvering System fire a burst of flames, during operation or perhaps testing.

I had a video camera set up to try and catch some light trails, but unfortunately it wasn’t pointed straight up. Even so, that was just stunning.

Observation Log 9/8/09: The Space Shuttle and ISS fly overhead, about 1° apart!

September 8, 2009

That was amazing. Shuttle Discovery and the International Space Station just graced our skies. The shuttle had departed the ISS a few hours ago, and was visible about a degree ahead of the station as they passed from the SW to the E. Culmination was at 31°, and even through the haze both vehicles were plainly visible without binoculars.

Wow! I only wish I could have shared that with someone.