Gmdss_e3 : Element 3 - 573/605
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| Which of the following statements about the Iridium system is true? |
| A) There are 48 spot beams per satellite with a footprint of 30 miles in diameter. |
| B) There are 48 satellites in orbit in 4 orbital planes. |
| C) The inclination of the orbital planes is 55 degrees. |
| D) The orbital period is approximately 85 minutes. |
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