4 ms·
Totally get it in the military context, and why it's useful in the context of a missile lobbing holiday, but was rather more curious as to why it'd be used as a
by madaxe_again 11y ago
Totally get it in the military context, and why it's useful in the context of a missile lobbing holiday, but was rather more curious as to why it'd be used as a time source for synchronising packets in commercial applications as the article describes.
Based on what others have said and my own inkling I think it's about synchronisation at a fine timescale without having to trouble yourself with bothersome shit like relativity, and leaving that particular pain in the ass to the US military. That's what I meant by latency, but phone keyboard, walking, lazy!
- chiph 11y agoWhat it is is outsourcing your time source to the USAF. Aka introducing an external dependency. If these people are upset over 13 microseconds, wait until the DoD turn selective availability back on during a war or start adjusting satellite positions to avoid incoming ASAT missiles. Interesting fact: GPS time doesn't take leap seconds, etc. into account. As of last summer, it's ahead of UTC by 17 seconds. http://tycho.usno.navy.mil/leapsec.html http://tycho.usno.navy.mil/leapsec.html
- kylegordon 11y agoThere is an executive order to keep SA at zero. They have other means to deny GPS availability now, and it doesn't involve futzing global availability.