4 ms·
Oops, I misspoke. Both Galileo and Beidou are GNSS, but both are incomplete, and are expected to be fully populated sometime 2020+. China has had a regional sys
by drfritznunkie 12y ago
Oops, I misspoke. Both Galileo and Beidou are GNSS, but both are incomplete, and are expected to be fully populated sometime 2020+. China has had a regional system up for sometime (Beidou-1), but I didn't know they've been planning and launching a second, global system (Beidou-2).