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As many of you have heard, the launch has moved from no earlier than
June 26 to no no earlier than July 6. This is to allow the rocket
folks to replace
the 3rd stage nozzle. The nozzle is extendable, so that it can have
maximal efficiency as the surrounding air pressure declines, and
testing revealed that the extender system had more friction than
nominal. Even though it is still within spec, they decided to play
it safe and swap in the nozzle from the mission set to launch next
(Astro-F). (Or so I've heard.) This takes a while, hence the delay.
We GSFCers are taking this opportunity to come home for a while.
Some of us will return on the 19th, some on the 27th.
Today we are rehearsing the launch day activities. For XRS, this
means we sit and wait, until 245 seconds after "launch," when the
ACHE (ADR Control & Housekeeping Electronics; see
"How
Does the XRS Work" page) will be powered and we'll get
temperature measurements from the dewar.
Yesterday the three members of the XRS team still here (Fujimoto-san,
Furusho-san, and I) went for a short vacation to the western
peninsula. Apparently there's not much to do on the eastern one,
where we are. This is something we did once during Astro-E(1), so we
mostly retraced our path. The ferry across the bay used to be a
large one that could hold 50 cars or so; it's now a cute little teeny
tiny baby ferry that holds 6 cars. Apparently business isn't so good
any more.
Then we went to a noodle place in which you have to fish your noodles
out of the rotating water with chopsticks. I didn't get a photo with
the noodles swimming in the moat, but you can get an idea of how fast
the water is rotating (probably 78 rpm) in the photo to the right.
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