satellite communication

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Across
  1. 2. Orbit direction is opposite to earth’s rotation
  2. 5. angle on horizontal plane in antenna look angles
  3. 8. is the rotation of the vehicle about its vertical axis
  4. 12. point on earth vertically under satellite
  5. 15. the equipment used to provide the service for which the satellite has been launched
  6. 16. orbit is direction as earth’s rotation
  7. 18. Area covered by satellite
  8. 20. The point where the orbit crosses the equatorial plane going from south to north
  9. 21. Third stage of satellite launching
  10. 22. At presentthe radio-frequency band mainly used by most satellites
Down
  1. 1. these satellites can cover high altitudes
  2. 3. when day and night are of equal lengths
  3. 4. second stage of satellite launching
  4. 6. vertical angle in antenna look angles
  5. 7. horizontal lines on earth are called
  6. 9. first satellite of India
  7. 10. Vertical lines on earth are called
  8. 11. provides an average value of angular position of satellite wrt perigee
  9. 13. Rotation of a geosynchronous satellite means
  10. 14. First satellite of world
  11. 17. system partly present on satellite and partly on earth
  12. 19. elevation for geostationary orbit with equator