[AZ-Observing] Re: Another Shuttle and ISS pass tonight (06/20)

Greg,

At 2200 they were 5.52 miles apart. OK, how'd I come up with that, you ask
(and I know someone will).

First I looked up their positions in SkyMap at 2200.
 
ISS: S 50 37 04, W 7 23 02
STS-117: S50 38 07, W 7 15 41

I then ran these coordinates in a utility I have call Forward/Inverse to
come up with the answer.

Now that being said this is a topographic solution, it would not take into
account the greater separation due to the higher altitude. I don't imagine
it would add up to much, but if anyone would like to do the trig, feel free.
:)


Clear Skies
Rick Tejera
President, Editor SACnews
Saguaro Astronomy Club
Phoenix, Arizona
www.saguaroastro.org
saguaroastro@xxxxxxx 
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Greg Askins
Sent: Wednesday, June 20, 2007 21:36
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Another Shuttle and ISS pass tonight (06/20)

Another "thanks for the heads up". Missed/forgot last night's pass,  
but got a chance to show tonight's to my two oldest sons (12 and 11)  
and they found it quite enjoyable and interesting.

We all found a separation of about 4 fingers held at arm's length.  
How far away from each other are they in orbit?

Greg

On Jun 20, 2007, at 10:55 AM, Neville Cole wrote:

> Dunno how accurate this is, but Heavens Above is predicting another  
> pass of
> the pair tonight.
>
> They should both climb higher than last night, which was predicted  
> to be
> only 11 degrees, and they should be brighter too.
>
> This pass information is for the STS-117 orbiter, as seen from my  
> location
> in Litchfield Park, and it is predicted to be mag -0.1.
>

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