comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » Local solar time

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Local solar time [message #39995 is a reply to message #39904]

Mon, 28 June 2004 20:46

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

"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
------------------------------------------------------------ --------------

Report message to a moderator

[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

Previous Topic:	Re: Setting values to NaN
Next Topic:	Setting values to NaN

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 19:28:00 PDT 2025

Total time taken to generate the page: 0.56193 seconds