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Question
Distinguish between:
High Earth orbit - Medium Earth orbit.
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Solution
| High earth orbits | Medium earth orbits | |
| 1. | Height from the earth’s surface for these orbits is greater than or equal to 35780 km. | Height from the earth’s surface for these orbits is between 2000 km and 35780 km. |
| 2. | Satellites revolving in these orbits take around 24 hours to complete one revolution around the earth. | Satellites revolving in these orbits take around 2 to 24 hours to complete one revolution around the earth. |
| 3. | The satellites revolving in these orbits appear stationary with respect to earth. | The satellites revolving in these orbits do not appear stationary with respect to earth. |
| 4. | Satellites revolving in these orbits can be used for carrying signals for telephone, television etc. and also in the applications like meteorology. | Satellites revolving in these orbits can be used in the study of polar regions. |
| 5. | Example: IBEX (Interstellar Boundary Explorer) revolves in this orbit. | Examples: GLONASS (Global Navigation Satellite System) and Telstar – 1 revolve in these orbits. |
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