CyTLEViewer allows easy access to the two line element )TLE) sets of over 15000 objects orbiting the earth. Regularly updated through the Cynoxure website, this data changes daily. This app allows regular (manual) updating of the catalog of available objects, and real-time downloads of the TLEs of interest.
Additional inApp purchase will provide access to historical orbit parameters presented in an extremely informative fashion. Additional purchase also disables advertisements!