Hum,
Don't know what the thought of viewing AO-7 caught my attention, but it did. So I did some quick math:
In round numbers AO-7 is about 0.06 arc seconds across (1450 KM orbit, 0.4 meters diameter). That's the theoretical resolving power of a telescope with a 16,000mm focal length and magnification of about 500, constructed with perfect optics and operated in a vacuum. So I wouldn't hold my breath thinking you can observe it with a ground based telescope.
But maybe as a point of light? N2YO.com doesn't even list a magnitude for visible passes.
73, Bob, WB4SON
On Mon, Jul 9, 2018 at 7:38 AM, Samudra Haque [TTLLC] < sehaque@tekterrain.com> wrote:
Well, it is a well known that in some universes a double negative results in a positive result. I'm interested in taking an attempt at imaging OSCAR satellites. Any tips from the community for say, AO-7, using an optical telescope and a DSLR mounted at its focus?
Samudra N3RDX.
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Greg D Sent: Friday, July 6, 2018 8:07 PM To: APBIDDLE@MAILAPS.ORG; 'Ray Hoad' ray.hoad@mypbmail.com; amsat-bb@amsat.org Subject: Re: [amsat-bb] AO-7 orbit count.
With any luck, AO-7 will outlive (or perhaps it already has) the IBM punch card that caused the whole 5-digit thing in the first place. Of the constants in the universe, the first one is 42, immediately followed by either 72 or 80, depending on your background. We apparently had programmers define the KEPs format, as both lines are 71 characters long... :)
Greg KO6TH
(For source code, columns 73-80 were reserved for sequence numbers, so that when you dropped your deck, the cards could be reassembled in the proper order.)
Alan wrote:
Tom Clark, K3IO (ex-W3IWI) once observed that AO-7 was the only amateur satellite known to have suffered two catastrophic failures, thereby returning it to service. Hi HI
73,
Alan WA4SCA
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