Elements Of Remote Sensing
Which one of the following residual biases involves the GPS accuracy?

Signal propagation biases due to the sphere and troposphere propagation
Receiver-dependent biases due to clock stability with line
All listed here
Satellite dependent biases due to uncertainty in the orbital parameters of the satellite

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Elements Of Remote Sensing
Which one of the following statements is correct regarding the GPS satellites?

The inclination of axis satellite is 55°
All of these
The nominal altitude is about 20,200 km
The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)

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