Hi George, Seen from the navspasur the satteliet must be at 91,4 degrees azimuth and > 20 degrees elevation for a reflection. The elevation number I'm guesing based on the transmitter antenna system; it could be less. So I think the minimum altitude must be > 2000Km. This number is not exacly calculated, but estimated. Rob. ----- Original Message ----- From: "George Roberts" <gr@pobox.com> To: "Rob Hardenberg" <rob@itr-datanet.com>; <SeeSat-L@satobs.org> Sent: Sunday, June 27, 2004 2:24 PM Subject: Re: navspasur radar reflections > Rob, > > This is very interesting! One of your requirements is that the inclination of the > orbit be 33 degrees or greater. There is also a minimum altitude requirement. Could > you calculate the minimum altitude (in km or miles) that the Satellite must be so that when the > satellite is over 33 degrees North latitude it is visible from your location *and* from > navspasur? These two numbers would help narrow it down to a short list of satellites. > And how many degrees above the horizon at your location and at navspasur's location > does it have to be? 10 degrees? This affects the minimum height above the earth that > you require. Give the minimum height and 33 degree minimum inclination requirement > back to this list and I think you will get some answers. > > - George Roberts > > ----- Original Message ----- > From: "Rob Hardenberg" <rob@itr-datanet.com> > > My question: are there also high orbiting satellites who are big enough that > > can reflect the radar signals back to my location? I want to try to receive > > there reflection. > > I can put the keps of the possible kandidates into my tracking software. > > > > ------------------------------------------------------------------------- > Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: > http://www.satobs.org/seesat/seesatindex.html > > ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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