Would not the Observatory be Stratum 0, as it was the 'atomic clock' of its day? > These are high-precision timekeeping devices such as atomic clocks, GNSS (in

Would not the Observatory be Stratum 0, as it was the 'atomic clock' of its day? > These are high-precision timekeeping devices such as atomic clocks, GNSS (including GPS) or other radio clocks, or a PTP-synchronized clock.[30] They generate a very accurate pulse per second signal that triggers an interrupt and timestamp on a connected computer. Stratum 0 devices are also known as reference clocks. NTP servers cannot advertise themselves as stratum 0. A stratum field set to 0 in NTP packet indicates an unspecified stratum.[5]:21 * https://en.wikipedia.org/wiki/Network_Time_Protocol#Clock_strata https://en.wikipedia.org/wiki/Network_Time_Protocol#Clock_st...