View Full Version : satellite question...

06-29-2003, 04:27 PM
Sat calculator shows (in my area long 42.87N, lat 78.92W) the 101 bird is azmith 210.8, elevation 35.8 and the 119 bird azmith 231, elevation 26.3 I thought the 119 bird was higher in the sky than the 101. And what exactly do the numbers 101 and 119 denote?


07-01-2003, 09:09 AM
The numbers 101, 110, and 119 denote the west longitude of the satellite orbital locations above the equator. Satellites are placed in a geosynchronous orbit at a distance of 22,300 miles above the earth in an area known as the Van Allen belt. I'm reciting this from memory so don't flame me if the info isn't entirely accurate. It should be close, however. Basically, they are placed in these locations and are accelerated to a speed that matches the earth's rotation at that distance. The result is that they appear to be stationary in the sky when in reality they are travelling over a thousand miles per hour. From your location, 119 degrees would be much further west so the satellite would be closer to the horizon than the one at 101 degrees, which would be only slightly to the west but not quite directly overhead. The position of each satellite depends on your location relative to them.

07-03-2003, 09:18 AM
I believe that the 101 & 119 refers to the longitude west of the prime meridian that runs thru Grenwich, England and goes up to 180 degrees. It is the lattitude that is measured north & south of the equador and goes to 90 degrees at both the north & south pole.