Global Positioning System satellites useful for navigational purposes and geodetic studies. The standard format of the GPS situation appeared in SPX-518 . It provides many links to GPS related databases. Additional information is not available. It has not been reestablished after a week of effort.
Some data are on line for electronic access.
Information on the current status of the instruments on board from the investigators will be most welcomed. This URL also enables executing several codes related to the orbits of many geocentric science payload spacecraft.