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3 |
1,761 |
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Suitsat - why so bad lifetime prediction? by
Ian Stirling
Suitsat was widely predicted at the time to have lasted about 6 weeks
before decaying.
It lasted more than 6 months.
Is this due to uncertainty of the...
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0 |
1,433 |
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Sun angle and spysats by
Allen Thomson
There's a cute illustration of the tendency for optical spysats
to have orbits optimized for, among other things, sun angle and
time of day at...
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December 6th 04 05:00 AM
by Hamish
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5 |
1,370 |
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Sun Sensors for Attitude Determination by
David Harper
I'm interested in developing a sun sensor (or maybe a horizon sensor)
for a low-cost, amateur, high altitude project. However, I'm having
some difficulty...
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November 30th 04 10:50 PM
by greg
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5 |
736 |
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Sun synchronous explanation by
oriel36[_2_]
The common explanation for satellite 'precession' relies on planetary
spherical deviation -
" The uniformity of sun angle is achieved by tuning natural...
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3 |
1,215 |
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Sun-sync orbit? by
MattWriter
The DARPA solicitation for the new FALCON small launch vehicle program
specifies the requirement to put a satellite in "sun synchronous orbit" at 450
km at "79...
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1 |
1,184 |
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4 |
619 |
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TDRS Satellites by
Paul Marsh
I don't know if this is the right group to post this question to, but I'll
give it a try. Is there any way of knowing which two TDRS satellites are
being used...
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0 |
1,176 |
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TDRSS ground station expansion? by
Allen Thomson
I was looking at the original TDRSS ground station (32.502 N, 106.611
W) in Google Earth historical imagery and noticed that a substantial
addition was made to...
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4 |
1,014 |
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46 |
7,137 |
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Telemetry and Command References? by
Martin Sagara
Can anyone recommend a good textbook or reference on spacecraft
telemetry and commanding? I've looked at the CCSDS handbooks but
found them a little terse and...
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1 |
1,950 |
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Tell me about the LEM by
Richard Lamb
The Lunar Lander has always fascinated me.
The first (and only) manned spacecraft to
land on another world.
Not being a part of that part of history,
I don't...
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5 |
440 |
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Terminal Velocity by
Niobium
We all know the NASA method of re-entry Big shower of sparks and that's the scientists on the ground.
However, given a vehicle of 40,000 LB or ...
( 1 2)
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December 10th 12 06:23 PM
by props
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11 |
4,006 |
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Testflight by
K. Larsen
I heard Nasa are testing the scram Jet mach 7 machine soon.
It is supposed to such oxygen out of the atmosphere at some 10's of
thousands of meters...
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4 |
536 |
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Testing again by
Greg D. Moore \(Strider\)
--
Greg Moore
Ask me about lily, an RPI based CMC.
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1 |
899 |
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Testing Moderation of sci.space.tech by
Greg D. Moore \(Strider\)
Please do NOT reply to this message.
Any replies will NOT be approved.
--
Greg Moore
Ask me about lily, an RPI based CMC.
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1 |
986 |
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tests .. by
Markus Baur[_2_]
and - did it work ?
markus
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1 |
988 |
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That Spinning Thing by
Jack Frillman
When watching the Russian Progress docking to the ISS I see this little
thing spinning. When I see it from the Progress on board camera view it
looks like it...
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0 |
757 |
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The Apollo moon landing missons? by
Christopher
Did the have to do a retro burn to slow down into lunar orbit? I
don't seem to remember any of the missions having done so.
i.e. as you climb out of a...
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7 |
1,274 |
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The bomb fairy. by
Ian Stirling
If you have a string of bombs spaced a second apart on a trajectory,
is there a reason that you can't simply ride the stream with an orion, and
constantly...
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3 |
1,257 |