The 66 operating Iridia fly in 6 planes with 11 objects per plane. Be sure to use the unambiguous P-number. The objects follow one another as shown.
Planes follow one another as shown.
E.g., P1 follows P0 and P0 follows P5. In polar regions, the sky is continually littered with Iridia. E.g., if P22 is low in the West moving Southward, P33 is rising in the North. The angle between P5 and P0 is much smaller than the other inter-planar angles. Object numbers followed by R occupy the designated place in the constellation, having replaced craft formerly in that place.