Any projection as to where it will re-enter?
Not really, with an error of +/- 6 hours it can be anywhere over half the world. Even with an error of +/- 45 minutes, it can be anywhere around the world (but under that last orbit's path)... Bob
-----Original Message----- From: amsat-bb-bounces@amsat.org
[mailto:amsat-bb-bounces@amsat.org]On
Behalf Of Robert Bruninga Sent: Tuesday, May 29, 2007 7:03 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: RAFT is coming down! Grab telemetry
RAFT is de-orbiting within the next 12 hours or so.
It will arrive much earlier than any prediction based on Keplarian Elements because they are always too old. Best
bet is
to start 20 minutes early and point your beam towards AOS
and
where it will get about 10 deg above the horizon and wait.
Then
manually follow the short 3 minutes along the track...
- Who will get the last telemetry?
- How hot will it get before telemetry dies?
We need worldwide operators collecting telemetry packets if
they
want to capture the last packet.
See the live temperature plot on the RAFT-RE_ENTRY WEB
PAGE...
http://www.ew.usna.edu/~bruninga/craft/save-raft.html
We particularly need data from the southern hemisphere where
the
passes are in the sun and will show the highest temps...
Tune in 145.825 1200 baud AX.25 packet. And even with a
small
antenna, on the two overhead passes per day, you should get
at
least one telemetry packet. They are every 10 seconds..
Each
one begins with a unique serial T#nnn and so we can merge different captures from different folks.
Bob, WB4APR
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