the inmarsat satellites are on geostationary orbits. the "4 or 5 undisclosed-to-the-public satcom ping data" might remain undisclosed due to a) already having

the inmarsat satellites are on geostationary orbits. the "4 or 5 undisclosed-to-the-public satcom ping data" might remain undisclosed due to a) already having been used to provide the resulting location estimate of the "last ping" or b) the data being deemed uninteresting or c) the usual combination of bureaucracy, secrecy, perceived nefarious aims and observed incompetent means.