Celestial Reference Frame Department
crf.usno.navy.mil
Celestial Reference Frame Department
1–10 of 58 posts
Re: Celestial Reference Frame Department
#2More information about the software they use https://en.wikipedia.org/wiki/Naval_Observatory_Vector_Astro...
Manual: https://aa.usno.navy.mil/downloads/novas/NOVAS_F3.1_Guide.pd...
Re: Celestial Reference Frame Department
#3I did a deep dive on this once: Coordinated Universal Time (UTC) is coordinated among ... who? The answer (at least when I looked into it): University of Paris, NIST, and the US Naval Observatory. The other two are constantly comparing state of the art atomic clocks. USNO is the only member looking outward.
Re: Celestial Reference Frame Department
#4Cool patch in the top left. And non-disparagingly I found this charmingly old school in the bottom right: Regular website maintenance is scheduled for
Thursdays from 3-5pm Eastern Time, during
which time the website may be unavailable.
Re: Celestial Reference Frame Department
#5I did a deep dive on this once: Coordinated Universal Time (UTC) is coordinated among ... who? The answer (at least when I looked into it): University of Paris, NIST, and the US Naval Observatory. The other two are constantly comparing state of the art atomic clocks. USNO is the only member looking outward.
Those are the time people. There's also the Earth Rotation Service.[1] They track what the planet is doing. The Earth Orientation Center, in Frankfurt, Germany, tracks where the poles are pointed and the rotation speed. These are the people behind leap seconds.
It all comes down to 3 numbers.[2]
[2] https://www.iers.org/IERS/EN/DataProducts/tools/eop_of_today...
Re: Celestial Reference Frame Department
#6I did a deep dive on this once: Coordinated Universal Time (UTC) is coordinated among ... who? The answer (at least when I looked into it): University of Paris, NIST, and the US Naval Observatory. The other two are constantly comparing state of the art atomic clocks. USNO is the only member looking outward.
Those are the time people. There's also the Earth Rotation Service.[1] They track what the planet is doing. The Earth Orientation Center, in Frankfurt, Germany, tracks where the poles are pointed and the rotation speed. These are the people behind leap seconds. It all comes down to 3 numbers.[2] [1] https://www.iers.org/ [2] https://www.iers.org/IERS/EN/DataProducts/tools/eop_of_today...
> These are the people behind leap seconds.
So they are my enemies
Re: Celestial Reference Frame Department
#7I think the way the Celestial Reference Frame Department does things might be old-fashioned.
With new tech like blockchain for decentralized coordination, or machine learning algorithms that can process astronomical data more accurately and quickly, there might be better and easier ways to do celestial referencing. It might be time for a change to keep up with these new advancements.
Re: Celestial Reference Frame Department
#8I think the way the Celestial Reference Frame Department does things might be old-fashioned. With new tech like blockchain for decentralized coordination, or machine learning algorithms that can process astronomical data more accurately and quickly, there might be better and easier ways to do celestial referencing. It might be time for a change to keep up with these new advancements.
> machine learning algorithms
Machine learning algorithms are good for cheaper replacement of cheap customer service agents, but they are not trustable.
For important things (and having accurate and precise time is an important thing) you need to know in advance that the task will be completed correctly; you actually need to know why it will be completed correctly.
Anything based exclusively on old data, with no formal model, simply cannot give you any guarantee.
Re: Celestial Reference Frame Department
#9I think the way the Celestial Reference Frame Department does things might be old-fashioned. With new tech like blockchain for decentralized coordination, or machine learning algorithms that can process astronomical data more accurately and quickly, there might be better and easier ways to do celestial referencing. It might be time for a change to keep up with these new advancements.
> With new tech like blockchain for decentralized coordination
Can you elaborate on the applicability of the blockchain to CRFD's mission? They don't seem to be in the business of decentralized coordination.
Re: Celestial Reference Frame Department
#10I think the way the Celestial Reference Frame Department does things might be old-fashioned. With new tech like blockchain for decentralized coordination, or machine learning algorithms that can process astronomical data more accurately and quickly, there might be better and easier ways to do celestial referencing. It might be time for a change to keep up with these new advancements.
What exactly do you think they do? I'm not sure how you think blockchain helps anything, nor what you think you're comparing machine learning with.