https://fcc.report/IBFS/SAT-AMD-20210818-00105/12943361"In Configuration 1—SpaceX’s preferred scenario—the amendment proposed herein would revise the pending application in three main respects to fully leverage these new capabilities:
1. SpaceX will more evenly spread capacity by latitude by targeting multiple inclinations, ensuring better, more consistent global coverage even as it continues to operate at lower, more sustainable altitudes than most other NGSO systems.
2.SpaceX will nearly double the number of satellites deployed in a sun-synchronous orbit optimized for key throughput demand times and service to Polar Regions, resulting in additional capacity for those chronically underserved areas such as Alaska.
3.The revised orbital planes will enable “single plane” launch campaigns, not requiring long dwell times in a low parking orbit waiting for orbital precession to spread satellites into other planes. These satellites can launch, be checked out at low altitude, and can all quickly go to their on-station positions.
Configuration 2 utilizes a smaller number of satellites per plane than Configuration 1, yet also spreads capacity more evenly by latitude for more consistent coverage across the globe. Neither configuration requests any additional spectrum or results in a significant increase in the potential for interference to any other spectrum user, including other NGSO licensees and current applicants. Although SpaceX proposes to rearrange the orbital parameters of its Gen2 System, it will slightly reduce the number of satellites in the constellation. Moreover, SpaceX will continue to leverage the inherent advantages of operating at lower altitudes than most NGSO constellations. Not only will atmospheric drag at these altitudes ensure that any debris quickly disintegrates in the atmosphere and pose no further danger to space operations or life on the ground, but operation at these altitudes is also consistent with a key recommendation from the astronomical community to minimize any effect on astronomical observations. "