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Article #23Re: Year 2000
From: William Thompson, code 682.1, x2...
Date: Thu, 27 Aug 1992 14:07
Date: Thu, 27 Aug 1992 14:07
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In article <1992Aug26.231536.5504@nrao.edu>, cflatter@nrao.edu writes... >Dates in FITS are stored using two digits for the year. Has anyone thought >about what happens in 2000? > > Chris Flatters > cflatter@nrao.edu I've been looking into this for the SOHO program. Currently, I've been looking into a CCSDS standard "Time Code Formats" CCSDS 301.0-B-2. I believe this is also an ISO standard, but the number eludes me right now. Basically, the standard allows you to enter dates in the form, e.g. 1992-08-27T10:03:38.123 There's also an alternate form that allows you to use day-of-year rather than month and day. Either the date or time part can be left out, in which case the "T" separater is omitted. The fractional seconds is optional, and can be to any precision desired. Although I like FITS, and plan to use it, I find the eight character limit very constraining. As one person I work with said, "It's like programming in FORTRAN 2". Bill Thompson
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Newsgroups: sci.astro.fits Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!ames!nsisrv!stars.gsfc.nasa.gov!thompson From: thompson@stars.gsfc.nasa.gov (William Thompson, code 682.1, x2040) Subject: Re: Year 2000 Message-ID: <27AUG199210071784@stars.gsfc.nasa.gov> News-Software: VAX/VMS VNEWS 1.4-b1 Sender: usenet@nsisrv.gsfc.nasa.gov (Usenet) Nntp-Posting-Host: stars.gsfc.nasa.gov Organization: NASA/GSFC-Laboratory for Astronomy and Solar Physics References: <1992Aug26.231536.5504@nrao.edu> Date: Thu, 27 Aug 1992 14:07:00 GMT Lines: 24