[amsat-bb] Re: visual sighting of amateur satellites
nss at mwt.net
Thu Nov 6 15:32:39 PST 2008
It was a misconception, that people saw sputnik.
it has been proven that it was too small, and what people thought was
sputnik was actuality the booster that put it up there.
Hilton Meyer wrote:
>Hi Steve and Jim,
>I well remember seeing Sputnik pass over several times and listening to
>the beep, beep , beep from the beacon, which from memory was on around
>20MHz. Two ham friends and I sat on my shack roof to observe the passes,
>here in Napier, New Zealand.
>STeve Andre' wrote:
>>On Wednesday 05 November 2008 21:59:59 Jim Danehy wrote:
>>>I have often seen the ISS in the evening sky. Its elevation is about 200
>>>miles up. It is a fairly large object measuring more than 310 feet
>>>225 feet long. It is about 150 feet in height. It is too big to fit
>>>football field at 310' x 225'. It is quite the sight. A couple of
>>>after I worked Richard I saw the ISS by stepping outside. It was a great
>>>dark morning and the ISS probably had the brightness on the solar
>>>1. The sun is -27 and the brightest object for us on earth. The -27
>>>the bright side ; as you go to a more positive number the object is
>>>AO 51 is about 25 cm on a side. That is about the size of a sack of
>>>groceries. I do not know the exact height of AO 51 but I know it is
>>>than the ISS (200 miles). I think AO 51 is about 250 to 300 miles up.
>>>I believe it is impossible to get a visual sighting of something that
>>>at that height. There are thousands of objects in orbit around our
>>>bag of groceries at 300 miles up would take more seeing ability than a
>>>human set of eyes can provide.
>>I've often wondered about this--I have no direct knowledge on this, but
>>what you say seems reasonable.
>>Except that I'm pretty sure that US Air Force people saw Sputnik. Not
>>how big it was compared to AO 51.
>>The other factor here might be the sun--glinting in the sun, wouldn't
>>be far more visable ?
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