STS tracking system N O t 1000 0 6 0 0 0 0 0 0 0 0 3000 1600 1.0 2.5 0.9 0 3.9 1440 0 0 0 1 0 4.0 1440 -1460 0 0 1 0 400 1460 -1480 0 0 1 0 2000 1600 0 0.4 0 2.0 0 10 60 60 1 1 1440 1480 50 1 50 0 2048 0 2500 0.0001 1 1 1