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The phasing parameter F determines the relative phasing between satellites indifferent orbital planes and thereby affects the relative position of thesatellites in a constellation. The collisions between satellites within theconstellation can be avoided if the minimum distance among them is large. Fromamong the possible values of F in a constellation, a value of F is desired thatleads to the maximum value of the minimum distance between satellites. Weinvestigate F for two biggest upcoming satellite constellations includingStarlink Phase 1 Version 3 and Kuiper Shell 2. No existing work or FCC filingprovides a value of F that is suitable for these two constellations. We lookfor the best value of F in these constellations that provides the maximum valueof the minimum distance to ensure intra-constellation avoidance of collisionsbetween satellites. To this end, we simulate each constellation for each valueof F to find its best value based on ranking. Out of the 22 and 36 possiblevalues of F for Starlink Phase 1 Version 3 and Kuiper Shell 2, respectively, itis observed that the best value of F with highest ranking is 17 and 11 thatleads to the largest minimum distance between satellites of 61.83 km and 55.89km in these constellations, respectively.

Phasing Parameter Analysis for Satellite Collision Avoidance in Starlink and Kuiper Constellations