Table 1: Analysis of ISL hops and link number.

Constellations Walker Different orbit planeCoorbit plane Hops/cycle ISLs/cycle Remark
ISL numbersHops (multiplication of two items)Hops ISL numbers
Pairs of ISLs/epochISLs/diff-orbit*Combinations of diff-orbitISL types**ISLs/coorbit Orbit plane number

Walker9/3/213333131236
Walker18/6/2333531618153
Walker24/3/2188374331276Compass
Walker24/6/1344532623276GPS
Walker25/5/1255552530300
Walker27/9/0433931930351
Walker72/6/13121251166712556
Walker77/7/13111171157882926Iridium
Walker66/6/13111151156662145Iridium
Walker120/10/1512129116101197140NeLS
Walker288/12/16242411231212287459504Teledesic

“diff-orbit” denotes the different orbit plane.
**“ISL types” denotes the ISL connection types for different orbit during one traversal cycle.