sidereal period

A sidereal period is the time taken for a planet or satellite to complete one orbit of its parent, as measured by its position against the background stars.

In general it assumes that since the multipath effect is related to the geometry of the satellites, which repeats every sidereal period (23 h 56 m 4 s), this effect may be reduced by correcting the data by subtracting the residuals of coordinates or observables of the preceding days for each epoch.

It makes one complete rotation a day, meaning that it turns a full circle every 24 hours (to be exact, it's once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period).