n mass radius x y z vx vy vz fix_x fix_y fix_z
1 27000 2.0   0 0 0  0  0  0    1 1 1
2 81    0.5   10 0 0 0  0  520  0 0 0
3 1     0.3   11.5 0 0 0 0 526  0 0 0