Article View: sci.astro
Article #4155Re: N.B.S. Time Service
From: Ed Nather
Date: Sat, 02 Jul 1988 15:27
Date: Sat, 02 Jul 1988 15:27
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In article <12277@mimsy.UUCP>, fred@mimsy.UUCP (Fred Blonder) writes: > > The Naval Observatory is , by law, the time standard for the country, > so their clock is, by definition, absolutely correct. That's good to know, since it solves a basic research problem I'm facing. I've been watching a variable white dwarf (G117-B15A) for several years, waiting to see a tiny change in its frequency that would denote secular cooling. Data in hand show it to be constant to about 1 part in 10e+15. [repeat: 10e+15] This is about the limit of accuracy claimed by the NBS time service, so I was worried: If I see a chnage was it the star or NBS? Now I'll just check the Naval Observatory time, and I'll KNOW. It's nice to have the law on your side ...
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!cs.utexas.edu!ut-sally!nather From: nather@ut-sally.UUCP (Ed Nather) Newsgroups: sci.astro,comp.dcom.modems,rec.ham-radio Subject: Re: N.B.S. Time Service Keywords: Time Ticks Message-ID: <12256@ut-sally.UUCP> Date: 2 Jul 88 15:27:41 GMT References: <455@trane.UUCP> <303@macomw.ARPA> <56@stanton.TCC.COM> <12277@mimsy.UUCP> Distribution: na Organization: U. Texas CS Dept., Austin, Texas Lines: 15