Depends on what data is a priority.
Location data does not take much bandwidth, in 1994 767 engine monitoring data was transmitted from mid-Atlantic deep into the US via 1200bps HFDL.
(Beware that not all SATCOM covers all of the earth. Iridium claims to but pass period seems long to me (it has had some satellite-to-satellite passover but that may have changed with new sats). Geostationary SATCOM is usually in ‘spot beams’ aimed at areas of high demand, so does not cover polar areas. The US government contracted for half of Iridium’s capacity for such reasons (for other than Secret information).