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The Silent Observer wrote:
> BTW, this kind of flyby would be a great simulator of the ability to
> deflect an asteroid in the time between discovery and impact -- a
> capability mankind very strongly needs to develop.
Also a useful procedure in any case, to refine trajectory data on
objects of
Alex Fraser wrote:
> I wonder if ERPS could be part of such a flyby mission? Perhaps an engine or
> sub assembly, if lucky an entire booster.
Not ERPS itself. As has been mentioned previously, we don't have the
resources to branch into every possible project that comes up. A
venture that
At 04:45 PM 7/28/2002, you wrote:
> > ...megapixel class cameras, OTS for under $500,
> > could be stripped of case and flash (but autofocus left in place)...
>
>No need for autofocus -- focus is always at infinity! And anything which
>has moving parts requires a change of lubricant, to something
On Sun, 28 Jul 2002, The Silent Observer wrote:
> > Continuous coverage is nice, but for a brief asteroid encounter, you can
> > plan the encounter so it's within view of your main ground station.
>
> In fact, enough flash memory to hold a hundred or so megapixel 24-bit
> images need cost only a
At 04:30 PM 7/28/2002, you wrote:
>Oh, BTW, there's now a VGA digital camera the size of a credit card, and
>about three times as thick;
I have one of those (for a client's project), was $100+. I also have a
BLINK (same client), thicker but only $50. They use SDRAM so that's even
cheaper than
Henry Spencer wrote:
>
> On Sun, 28 Jul 2002, Alex Fraser wrote:
> >
> > You of course would need to have
> > antennas all the way around the planet as it seems to spin on a daily basis.
>
> Continuous coverage is nice, but for a brief asteroid encounter, you can
> plan the encounter so it's wi
That is a great link on micro sats. Thanks Henry.
Attention all hams, check out the radios and the use of a Kantronics TNC beefed up
for space telemetry.
Perhaps the Voodoo statement was wrong, if taken out of context. The long list
of sponsors certainly would make lots of things possible. Ha
Cal Poly's specification for a cubesat is 100mm per side, and 1 kg max
mass. They cluster them in pods before deployment, 3 or 6 per pod.
For maximum packing efficiency in small rockets, I'd probably
recommend a hexagonal cross section, about 150mm in maximum
diameter. This should easily fit i
I'm sure most of you subscribe to Air&Space or at least read it at the
beauty salon (heh :-) but in case you don't, John was quoted in the Sept.
2002 issue on page 49. The article is about commercialization of space and
what private enterprise's role is there.
It's by far my favorite magazine. J
On Sun, 28 Jul 2002, Alex Fraser wrote:
> ERPS will not be able to take a picture of an object passing near the earth.
> Not a close up. You couldn't get the picture back to earth anyway, so what's
> the point?
Perhaps not ERPS itself, but there are people in the small-satellite
community who kno
At 08:46 PM 7/27/2002, you wrote:
> Has any one here built a hot wire cutter for foam?
Check with any theater shop or check the Stagecraft archives at:
http://stagecraft.theprices.net/
--
Jerry Durand
Durand Interstellar, Inc.
219 Oak Wood Way
Los Gatos, California 95032-2523 USA
te
Alex Fraser wrote:
> The one encouraging thing that I see coming out of this topic is that in the
> past when these flights of fantasy have happened on this list there where people
> working off list (or a non public list) to build real state of the ERPS machines.
This one's probably more of
ERPS will not be able to take a picture of an object passing near the earth.
Not a close up. You couldn't get the picture back to earth anyway, so what's the
point?
If you got close by some stroke of luck then how would you aim the camera? Oh
radio control, is that what you are thinking? T
[EMAIL PROTECTED] wrote:
> The high inclination could easily be the result of an Earth encounter. On
> the other hand, lots of main belt asteroids share that inclination.
> Spectroscopy should settle the rocket body question.
>
> With digital cameras getting so tiny and the NEA catalog gett
On Sun, 28 Jul 2002 [EMAIL PROTECTED] wrote:
> With digital cameras getting so tiny and the NEA catalog getting into shape,
> I'm wondering if a NEA flyby might be in ERPS future. Maybe a 1kg payload?
Having looked at this in some detail, I think you'd need about a 3-4kg
spacecraft to do it wi
Gentlefolk,
<>
The high inclination could easily be the result of an Earth encounter. On
the other hand, lots of main belt asteroids share that inclination.
Spectroscopy should settle the rocket body question.
With digital cameras getting so tiny and the NEA catalog getting into shape,
I'm
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