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Re: Local solar time [message #39986 is a reply to message #39904]

Tue, 29 June 2004 05:09

Haje Korth
Messages: 651
Registered: May 1997

Senior Member

Craig,
Zensun.pro was a pure guess and there was that "local" keyword that I
thought might help. To be honest, I wasn't sure what David was looking for.
Maybe we can start with a definition!?

Cheers,
Haje

--
Dr. Haje Korth
Space Physics Group
The Johns Hopkins University
Applied Physics Laboratory
MS MP3-E128
11100 Johns Hopkins Road
Laurel, MD 20723-6099
USA
Phone: 240-228-4033 (Washington), 443-778-4033 (Baltimore)
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e-mail: haje.korth@jhuapl.edu

"Craig Markwardt" <craigmnet@REMOVEcow.physics.wisc.edu> wrote in message
news:oneknzrpow.fsf@cow.physics.wisc.edu...
>
> "Haje Korth" <haje.korth@jhuapl.edu> writes:
>> Check the ESRG IDL library. Maybe zensun.pro does what you want.
>
> I don't think this is the right thing, but it's close. Local solar
> time would be the hour angle (=longitude) of the sun, not the zenith
> angle.
>
>> "David Oesch" <oesch@giub.nospam.unibe.ch> wrote in message
>> news:40dfde52$1@news.unibe.ch...
>>> Hi folks...
>>>
>>> Has anyone already written a program to convert Julian to "local solar
>>> time" ? Just before I re-invent the wheel..
>
> I didn't find any with a quick search. Just a word of caution if you
> are new to time systems. You need to be clear what time system you
> are starting in. Julian days is just a way of counting days, not a
> time system. I am quite certain that one could express local solar
> time in Julian days. Presumably you mean that the starting time is a
> civil time like UTC?
>
> Craig
>
> --
> ------------------------------------------------------------ --------------
> Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
> Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
> ------------------------------------------------------------ --------------

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[Message index]

		Local solar time By: David Oesch on Mon, 28 June 2004 02:01
		Re: Local solar time By: David Fanning on Wed, 30 June 2004 06:29
		Re: Local solar time By: kuyper on Wed, 30 June 2004 05:59
		Re: Local solar time By: Craig Markwardt on Tue, 29 June 2004 16:36
		Re: Local solar time By: James Kuyper on Tue, 29 June 2004 13:19
		Re: Local solar time By: Craig Markwardt on Tue, 29 June 2004 12:13
		Re: Local solar time By: Craig Markwardt on Tue, 29 June 2004 11:58
		Re: Local solar time By: Craig Markwardt on Tue, 29 June 2004 11:54
		Re: Local solar time By: Michael Wallace on Tue, 29 June 2004 08:28
		Re: Local solar time By: Haje Korth on Tue, 29 June 2004 08:00
		Re: Local solar time By: Haje Korth on Tue, 29 June 2004 05:12
		Re: Local solar time By: David Oesch on Tue, 29 June 2004 05:12
		Re: Local solar time By: Haje Korth on Tue, 29 June 2004 05:09
		Re: Local solar time By: James Kuyper on Tue, 29 June 2004 04:51
		Re: Local solar time By: Craig Markwardt on Tue, 29 June 2004 02:48
		Re: Local solar time By: David Oesch on Mon, 28 June 2004 23:31
		Re: Local solar time By: Craig Markwardt on Mon, 28 June 2004 20:46
		Re: Local solar time By: Haje Korth on Mon, 28 June 2004 08:07

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