Meteorologists use it for weather forecasting and global climate studies; and geologists can use it as a highly accurate method of surveying and in earthquake studies to measure tectonic motions during and in between earthquakes | L-band refers to a range of frequencies between 390 and 1550 MHz |
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It both monitors and controls the global GPS stations, and it uses automated computer systems to retrieve and analyze data from the receivers at those stations | By comparing the received sequence with the original sequence, scientists can determine how long it takes for the signal to reach the Earth from the satellite |
In the scientific community, GPS plays an important role in the earth sciences.
1996 33 3 23833 1996-019A IIA NAVSTAR 38 USA 126 E3 16 | 2003 45 21 27704 2003-010A IIR NAVSTAR 53 USA 175 E2 21 |
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1992 27 27 22108 1992-058A IIA NAVSTAR 28 USA 85 F6 22 | 2006 58 12 29601 2006-052A IIR-M NAVSTAR 60 USA 196 F2 17 |
Johnson, Bobbie May 19, 2009.
This signal contains data about the health and position of the satellite | 2003 56 16 27663 2003-005A IIR NAVSTAR 52 USA 168 D3 31 |
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This page was last modified on July 23, 2021 | 2004 61 2 28474 2004-045A IIR NAVSTAR 57 USA 183 C4 26 |
The first segment of the system consists of 24 satellites, orbiting 20,000 km above the Earth in 12-hour circular orbits.
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