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UTC and real time?

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UTC and real time?

5 REPLIES 5

UTC and real time?

On 2/17/2007 10:28:53 PM, mionsky wrote:
>>http://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat
>>It's normal -33sec. time step?

Normal? Don't know. Correct, yes. It drifts. Blame those atomic clocks for not taking account of the variations in the rotation of the earth and the various definitions of the second.

http://hpiers.obspm.fr/eop-pc/

Stuart


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UTC and real time?

That is a 121 Fortran subroutines, and the IAU2000 correction model with 'zero' solution.

http://www.iau-sofa.rl.ac.uk/publications/aas04.pdf


Can it somebody with MathCAD been solved?
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UTC and real time?

On 2/18/2007 3:47:36 AM, mionsky wrote:
== That is a 121 Fortran subroutines, and the IAU2000 correction model with 'zero' solution.
== http://www.iau-sofa.rl.ac.uk/publications/aas04.pdf
== Can it somebody with MathCAD been solved?

You might find some elements of it within the Astronomical Formula Handbook.

http://www.mathcad.com/library/ebooks/astro_form.asp

Stuart




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UTC and real time?


You are sure, that the second ecliptic model-sun, moon, earth are inside?
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UTC and real time?

On 2/18/2007 6:19:53 AM, mionsky wrote:
== You are sure, that the second ecliptic model-sun, moon, earth are inside?

I don't know which ecliptic model you are referring to.

The easiest way for you to check would be to download it, it's not that big.

Stuart
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