Satellites & Real time Satellites Tracker

What is satellite        

A satellite normally go around the earth and do very impotent jobs for earth. There are two kind of satellite available in orbit. They are natural and man made. Natural satellites like moon and stars, man made satellites are other artificial machines in the orbit.   

Orbit

When a satellite is launched to the space, it is placed in orbit around the earth. The earth's enormity holds the satellite in a certain path as it goes around the earth, and that path is called an "Orbit". There are three kind of orbits;


LEO (Low Earth Orbit)

• Satellites circling 100 to 300 miles above the earth's surface.

• it is close to the earth it travel very fast to avoid being pulled out of orbit by gravity and crashing into the earth.

• It travel in low earth orbit about 17,500 miles per hour. 

• These satellites can circle the whole earth in about an hour and a half.

MEO (Medium Earth Orbit )

• Satellites circling 6,000 to 12,000 miles above the earth’s surface.

• Satellites circling mediumaltitude of the earth.

• It takes 4 to 8 hours to go around the earth.

GEO, or Geostationary Earth Orbit

• A satellite in geosynchronous orbit circles the earth in 24 hours

• They appear "fixed" with respect to a given spot on earth

• Satellites circling 22,282miles above the earth’s surface. 

• Satellites circling high orbit of the earth.

• GEO satellites can cover a large part of the planet.

• Three GEO satellites can cover the globe, except for the parts at the North and South poles.

Due to satellite configuration four to twelve (4-12) satellites are visible to any place on the earth at any time.

GPS Segment

Space Segment

Minimum of 32 operational satellites in six circular orbits.

User Segment

Consists of the receivers, processors, and antennas that allow land, sea, or airborne operators to receive the GPS satellite broadcasts and compute their precise position, velocity and time.

Control Segment

Consists of a master control station in Colorado Springs, with five monitor stations and three ground antennas located throughout the world

GPS Constellation Status

      The current GPS constellation consists of 32 Block II/IIA/IIR/IIR-M satellites. GPS constellation and individual satellite status is updated every working day. You can visit following link to update today working satellitesstatus.

http://www.navcen.uscg.gov/?Do=constellationStatus


Following application show the Real time satellites path and it included flowing satellites;



ISS(ZARYA), CELESTISII/FALCON 9 R/B, GOES 12, GOES 15, PRISM(HITOMI), BONU MI, NAVSTAR 37 (USA 117),  NAVSTAR 66 (USA 232), OTV2 (USA 226), VENESAT-1, NAVSAR 63 (USA 203), NAVSAR 55 (USA 178), NAVSAR 62 (USA 201),  NAVSAR 29 (USA 87),  NAVSAR 34 (USA 94),  NAVSAR 51 (USA 166),  NAVSAR 36 (USA 100), NAVSAR 43 (USA 132),  NAVSAR 46 (USA 145), YAOGAN 15