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A geostationary satelite system is built which incorporates intersatellite links (ISLS) between satellites. This permits the transfer of information between two earth stations on the surface of the earth, which are not simultaneously visible to any single satellite in the system, by using the ISL equipment to link up the satellites. In this question, the effects of ray bending in the atmosphere may be ignored, processing delays on the satellites may initiaky be assumed to be zero, the earth may be assumed to be perfectly circular with a flat (i.e., not hilly) sur- face, and the velocity of the signals in free space (whether in the earth's lower atmosphere or in a vacuum) may be assumed to be the velocity of light in a vac-

A geostationary satelite system is built which incorporates intersatellite links (ISLS) between satellites. This permits the transfer of information between two earth stations on the surface of the earth, which are not simultaneously visible to any single satellite in the system, by using the ISL equipment to link up the satellites. In this question, the effects of ray bending in the atmosphere may be ignored, processing delays on the satellites may initiaky be assumed to be zero, the earth may be assumed to be perfectly circular with a flat (i.e., not hilly) sur- face, and the velocity of the signals in free space (whether in the earth's lower atmosphere or in a vacuum) may be assumed to be the velocity of light in a vac-

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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A geostationary sateMite system is built which incorporates intersatellite links (ISLS) between satellites. This permits the transfer of information between two earth stations on the surface of the earth, which are not simultaneously visible to any single satellite in the system, by using the ISL equipment to link up the satellites. In this question, the effects of ray bending in the atmosphere may be ignored, processing delays on the satellites may initiaky be assumed to be zero, the earth may be assumed to be perfectly circular with a flat (i.e., not hilly) sur- face, and the velocity of the signals in free space (whether in the earth's lower atmosphere or in a vacuum) may be assumed to be the velocity of light in a vac- uum. a. What is the furthest apart two geostationary sateMites may be so that they can still communicate with each other without the path between the two satellites being interrupted by the surface of the earth? Give your answer in degrees longitude between the subsatellite points. b. If the longest, one way delay permitted by the ITU between two earth stations communicating via a space system is 400 ms, what is the furthest apart two geostationary satellites may be before the transmission delay of the signal from one earth station to the other, when connected through the ISL system of the
Transcribed Image Text:A geostationary sateMite system is built which incorporates intersatellite links (ISLS) between satellites. This permits the transfer of information between two earth stations on the surface of the earth, which are not simultaneously visible to any single satellite in the system, by using the ISL equipment to link up the satellites. In this question, the effects of ray bending in the atmosphere may be ignored, processing delays on the satellites may initiaky be assumed to be zero, the earth may be assumed to be perfectly circular with a flat (i.e., not hilly) sur- face, and the velocity of the signals in free space (whether in the earth's lower atmosphere or in a vacuum) may be assumed to be the velocity of light in a vac- uum. a. What is the furthest apart two geostationary sateMites may be so that they can still communicate with each other without the path between the two satellites being interrupted by the surface of the earth? Give your answer in degrees longitude between the subsatellite points. b. If the longest, one way delay permitted by the ITU between two earth stations communicating via a space system is 400 ms, what is the furthest apart two geostationary satellites may be before the transmission delay of the signal from one earth station to the other, when connected through the ISL system of the
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