stemo
Stemo is an analog satellite laser ranging system that was used to measure the distance between the Earth's surface and a satellite. Developed in the 1990s, it consisted of a receiver and transmitter antenna that were deployed at observing stations around the world. The system utilized pulsed lasers to send and receive signals, with the time taken for the signal to return indicating the distance from the satellite to the Earth.
Stemo was a collaborative project between Space Research Centre in Australia and Royal Holloway, University of
Stemo included the consideration of the general theory of relativity, which stated that mass and energy warp
Observational campaigns with the Stemo system at its launch produced usable results regarding observing first optical