From: Receiver architectures for positioning with low earth orbit satellite signals: a survey
Constellation | Center Frequency | Altitude[Km] | Inclination[\(^{\circ }\)] | #Sats |
---|---|---|---|---|
OrbComm | 137, 138MHZ | 815,785–875,740 | 45, 70, 108 | 47 |
Iridium | 16161626MHz | 625, 720 | 86.4 | 66 |
Globalstar | 1.6, 2.5GHz | 1400 | 52 | 48 |