Hi all, being there without metrics is just horrible for Europeans :) so it is good that you put it there ... Jörg Bram Dorreman schrieb: > > Bill, > > You can easily calculate this for yourself: > These GEO sats have an orbit with a radius of > 6371 + 35789 km = 42160 km (Earth radius + orbital height)or > 3960 + 22243 miles = 26203 miles > > So the orbital circumference = 2 * pi * Radius: > 2 * pi * 42160 km = 264899 km or > 2 * pi * 26203 miles = 164638 miles > > The satellite travels this distance in 24 hours (in fact in about 4 minutes > less). > So its speed is: > 264899 / 24 km/h = 11037 km/h or > 164638 / 24 miles/h = 6860 miles/h > > If you like the speed per seconde, divide those amounts by 3600 (seconds in > one hour). > > You get: > 11037 / 3600 km/s = 3.066 km/s or > 6860 / 3600 miles/s = 1.906 miles/s > > I hope I did not make a mistake. > > Bram Dorreman, leader Belgian Working Group Satellites. > COSPAR 4160 (Achel 1): > 51° 16' 45.5" N (51.2793 N), > 5° 28' 36.6" E (5.4768 E) > > -----Original Message----- > From: Bill Mitchell <escape@velocity.net> > To: SeeSat <SeeSat-L@satobs.org> > Date: donderdag 11 oktober 2001 20:54 > Subject: Newbie GEO question > > >Greetings, > > > >I'm new to the list and have a question regarding GEO sat's. > >At what speeds do they travel? > >I realize that relative to the earth at 22,000 miles they travel 0, but > >let's say bring their orbit down to LEO, how fast would they be traveling? > >17,500? > >I was able to observe one in my homemade 10" telescope, very cool. Stars > >move, Satellite doesn't. > > > >Thanks in advance, > >Bill > >www.velocity.net/~escape > > > > > >----------------------------------------------------------------- > >Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' > >in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org > >http://www.satellite.eu.org/seesat/seesatindex.html > > > > > > ----------------------------------------------------------------- > Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' > in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org > http://www.satellite.eu.org/seesat/seesatindex.html -- ===================================================================== Dr. Jörg Kampmann - IBK-Consult for Real-Time and Embedded Systems D-31228 Peine - Tel.:+49-177-276-3140 - Fax: +49-5171-13385 http://www.ibk-consult.de ===== QNX is the better Choice for Real-Time: http://www.qnx.com ==== ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www.satellite.eu.org/seesat/seesatindex.html
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