Starlink being evaluated to enhance GPS PNT capabilities

Aren't there stable astral radio signal sources detectable with ng quantum sensors; such as Rydberg antenna arrays?

How many astral signals does a receiver need to fix to determine the time of day on earth (~theta) given lat/long?

How many astral signals does a receiver need to fix to determine lat/long/altitude given the current time?

How many astral signals does a receiver need to fix to determine to infer the current time, given geometrically-impossible triangulation and trilateration solutions given the known geometry of the cosmos and the spherical shape of the earth?

There is a regular monotonic tick in quantum waves; but not a broadcast planetary time offset/reference?

"Simple Precision Time Protocol at Meta" https://news.ycombinator.com/item?id=39306209 :

> FWIW, from "50 years later, is two-phase locking the best we can do?" https://news.ycombinator.com/item?id=37712506 :

>> TIL there's a regular heartbeat in the quantum foam; there's a regular monotonic heartbeat in the quantum Rydberg wave packet [photoionization] interference; and that should be useful for distributed applications with and without vector clocks and an initial time synchronization service

"Quantum watch and its intrinsic proof of accuracy" (2022) https://journals.aps.org/prresearch/abstract/10.1103/PhysRev...

..

Re: ntpd-rs and higher-resolution network time protocols {WhiteRabbit (CERN), SPTP (Meta)} and NTP NTS : https://news.ycombinator.com/item?id=40785484 :

> "RFC 8915: Network Time Security for the Network Time Protocol" (2020)