That's exactly what I was looking for, Bill. I knew it was there somewhere,
I was just on the wrong menu.



Thanks!



Anthony J. Kroes

Cedar Drive Observatory

Pulaski, WI







From: guide-user@yahoogroups.com [mailto:guide-user@yahoogroups.com] On
Behalf Of Bill J Gray
Sent: Saturday, May 24, 2008 3:07 PM
To: guide-user@yahoogroups.com
Subject: Re: [guide-user] Viewing Earth-Orbiting Satellites



Hi Anthony,

Under "Settings", you'll see a "TLE=" option. Click on this.

If you're running the current version of Guide from

http://www.projectpluto.com/new.htm

things will be quite straightforward. Your best bet in a situation
of this sort is to click on "Get 'all_tle.txt (about 650 KBytes)".
That'll get you the master file with just about every unclassified
satellite that's up there (a bit over 11 000 objects, at present).

Once you have that current dataset, turning satellites On and
going to a wide field of view ought to produce a blizzard of objects.
Set your date/time to when the image was made, and your lat/lon
to where you took it from, and the screen center to that of the
target object, and the ID ought to be straightforward to make.
Let me know if it isn't.

Incidentally, the low-orbiters move quite briskly, up to a
degree a second or so when near the zenith. If the trail crosses
the field of view (rather than being contained within it) and the
exposure is at all long, you may need to step through it in time,
and see which object goes flying across your field of view.

A final tip: if it's near declination -6 (for us mid-latitude
Northern Hemispherians) and moves east/west, it's probably a
geosynchronous or geostationary satellite.

-- Bill





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