Thursday, August 28, 2008

Do you sometimes find yourself missing the old secretive, paranoid Soviet-style Russia?

[Poster: "Keep your mouth shut!" by Nina Vatolina, 1941]

Me too!

[Pats you on head.]

Here, honey. Feel better.

In the interest of fair time, may I also present the hilarious official NASA version on the whole DAM affair:

Conjunction Update:
Using ATV thrusters, the ISS performed a 1 m/s braking burn yesterday at 12:11pm EDT to remove the risk of collision with an orbital object,- #33246 (part of the Kosmos-2421 satellite). The retrograde firing of 5 min 2 sec duration resulted in a mean altitude loss of ~1.77 km. Propellant usage: ~98 kg of ATV prop, leaving ~190 kg in “Jules Verne” prior to undock (possibly with some margin, to be assessed by ESA) and ~320 kg of Progress/SM props for attitude control of the stack. A second possible conjunction with another piece (#33248) of Kosmos-2421 has been identified for tomorrow (8/29) at 9:09pm EDT, currently predicted to be in the RED box. This would require another DAM (Debris Avoidance Maneuver), but more tracking is required for a burn decision. Estimated prime TIG (Time of Ignition): tomorrow 7:00pm. Prop strategy is currently under study. If a second DAM is necessary tomorrow, using ATV prop, the Progress 29P undocking on 9/1 (Monday) can be supported by SM thrusters. Ballistic calculations must continue to account for future Soyuz launch, Soyuz landing and Shuttle ULF2 launch/rendezvous constraints.

Ah, bureaucracy!

No comments: