A replacement GPS satellite, GPS 2F-5, was launched from Cape Canaveral on 21 February, 2014. The Delta 4 launch vehicle placed the satellite into LEO at an altitude of 500 km and an inclination of 28.5°, after which the upper stage delivered the satellite into its final orbit, with perigee altitude = 20,341 km, apogee altitude = 20,469 km and inclination = 55°. Calculate the total Av to manoeuvre the satellite from LEO to MEO. [Ans. Av=3.972 km/s (note that insertion is into apogee, not perigee, as this leads to a lower total Av)
A replacement GPS satellite, GPS 2F-5, was launched from Cape Canaveral on 21 February, 2014. The Delta 4 launch vehicle placed the satellite into LEO at an altitude of 500 km and an inclination of 28.5°, after which the upper stage delivered the satellite into its final orbit, with perigee altitude = 20,341 km, apogee altitude = 20,469 km and inclination = 55°. Calculate the total Av to manoeuvre the satellite from LEO to MEO. [Ans. Av=3.972 km/s (note that insertion is into apogee, not perigee, as this leads to a lower total Av)
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Transcribed Image Text:A replacement GPS satellite, GPS 2F-5, was launched from Cape Canaveral on 21 February,
2014. The Delta 4 launch vehicle placed the satellite into LEO at an altitude of 500 km and an
inclination of 28.5°, after which the upper stage delivered the satellite into its final orbit,
with perigee altitude = 20,341 km, apogee altitude = 20,469 km and inclination = 55°.
Calculate the total Av to manoeuvre the satellite from LEO to MEO.
[Ans. Av=3.972 km/s (note that insertion is into apogee, not perigee, as this leads to a lower
total Av)
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