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Re: Re: Optical Tracking of PCsat's LEDs?



I always download form celestrak.com.  They are always current.
Yes, lets hope for good weather.
thanks for trying
bob

On Fri, 23 Nov 2001, Louis A. Mamakos wrote:

>
> I'm going to try to photograph a pass with a 35mm camera (with a
> 50mm focal length, f/1.8 lens).  I think that it will take about a
> minute to pass through the field of view/film frame.  I've got
> some film left from the Leonid meteor shower I'll try; some
> high-contrast ISO 400 speed film.
>
> I'll also see about tracking it visually with a small telescope.
>
> This all assumes, however, that the weather will be vast better than
> is being predicted.  We've also got the moon (about half-full) to
> contend with which makes observing dim objects very difficult, as it
> will be well above the horizon.
>
> Are the orbital elements available on the AMSAT.ORG web site
> "good enough" to generate some predictions?  I used those,
> imported into The Sky (http://www.bisque.com), and I get somewhat
> different results compared with www.heavens-above.com.
>
> louie
> wa3ymh
>
> > Louis A. Mamakos asked about the next and final LED test for the year:
> >
> > > What time on Monday do you expect that the LEDs will be turned on?  I went to
> > > the heavens-above.com web and ....
> >
> > I BLEW IT!  It is 1929 EST on the 25th and 0029z on the 26th.  Thus,
> > Sunday evening... sorry...  PCsat will be visible by solar reflection as
> > it comes over the Gulf of MExico and when it passes over Atlanta, it will
> > enter eclipse.  At that instant we will turn on the Red LEDs for a few
> > minutes.  Then it goes up the east coast and exits over Montreal.
> >
> > By being in full sun at the start of the pass we gain two things:
> >
> >  1) People can find it and track it visually first before the LEDS
> >
> >  2) We can be assured that the voltage -fail-safe circuit which requires
> >  fully charged batteries in order for the LEDS to be turned on will give
> >  us the longest possible LED ON time.
> >
> > You wont see any of this without OPTICS.  Remember the light from PCsat in
> > the sun will probably be less than .0001 of what you see from ISS and less
> > from the LEDS...
> >
> > This is only a test...
> >
> > de WB4APR@amsat.org, Bob
> >
> > PCsat WEB  page     http://www.ew.usna.edu/~bruninga/pcsat.html
> >
> > ----
> > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>

de WB4APR@amsat.org, Bob

PCsat WEB  page     http://www.ew.usna.edu/~bruninga/pcsat.html
ISS-APRS FAQ:       http://www.ew.usna.edu/~bruninga/iss-faq.html
CUBESAT Designs     http://www.ew.usna.edu/~bruninga/cubesat.html
APRS LIVE pages     http://www.ew.usna.edu/~bruninga/aprs.html
APRS SATELLITES     http://www.ew.usna.edu/~bruninga/astars.html
MIM/Mic-E/Mic-Lite  http://www.toad.net/~wclement/bruninga/mic-lite.html

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