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Decoding MER image filenames, playing around with javascript
jaredGalen
post Jul 27 2007, 01:20 PM
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QUOTE (Indian3000 @ Jul 27 2007, 12:27 PM) *
a part of code which I had already written for me smile.gif


Uh oh...... blink.gif

Source Error:

CODE
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Line 2:  
Line 3:  <%@ Register Assembly="DevExpress.Web.ASPxDataControls.v6.1, Version=6.1.4.0, Culture=neutral, PublicKeyToken=79868b8147b5eae4"
Line 4:      Namespace="DevExpress.Web.ASPxDataControls" TagPrefix="dxwdc" %>
Line 5:


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Indian3000
post Jul 27 2007, 01:47 PM
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Error fixed smile.gif


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Tman
post Jul 27 2007, 03:03 PM
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Nice Indian!

I feel happy about our agreement on the local solar time biggrin.gif

Regarding writing in javascript the acquisition time and date on Earth in UTC. I'm on the way too. It works (of course) too with the (milli)seconds since 1. Januar 1970, 0:00 Uhr UTC.


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Tman
post Jul 28 2007, 07:19 AM
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Here my complete version with LST on Mars and UTC time and date on Earth.

http://www.greuti.ch/oppy/html/filenames.htm

First I was confused about differences between our versions during daylight saving time / summertime, but in the meantime I'm rather sure my version shows simply the acquisition time on Earth in UTC time, independent from the individual clock change on the computers. As far as I know my script works only with the UTC seconds since 01.01.1970.


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ElkGroveDan
post Jul 28 2007, 03:50 PM
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It's been a while since anyone handed out a Mars Bar here. But I think you deserve one for this, Tman



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Tman
post Jul 29 2007, 07:11 AM
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Wow, thanks Dan! biggrin.gif


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Tman
post Aug 5 2007, 01:24 PM
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QUOTE
...I found the point in my script where the difference is caused.

...And finally the solution. Now the script should it calculate correctly too.

http://www.greuti.ch/oppy/html/filenames.htm


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Reckless
post Aug 5 2007, 08:45 PM
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Thank you Tman that is so helpful every time I needed that info in the past (which was quite often) I used a pencil and paper. Even then I settled for "near enough" on the time and date.
biggrin.gif
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Tman
post Aug 8 2007, 10:53 AM
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Wish I had the skill to implement these caculations in my script too sad.gif
http://www.giss.nasa.gov/tools/mars24/help/algorithm.html

Local true solar time (LTST) for both locations and any mission seconds when the images were taken would be really cool!

However, our "local solar times" are no more than for fun, (among other things) because of http://www.giss.nasa.gov/research/briefs/allison_02/.


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Tman
post Aug 13 2007, 01:27 PM
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Here my first local "true" solar timing version (hope it's error free):

http://www.greuti.ch/oppy/html/filenames_ltst.htm

Thanks to a Perl script sample from helvick (he translated those calculations already into Perl), I could get over some difficulties by translation it into Javascript. Though it may still lack a step or two for more accuracy, it comes already rather "close" to the Local-True-Solar-Times in MER Analyst's Notebook - especially by Oppy, and to the Mars24 Sunclock itself (here currently within 1-2 minutes).

Additionally I implemented the Rovers' current times, and the longitudes (which are adjustable).


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Tman
post Aug 15 2007, 09:55 PM
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After adding the "leap seconds" from Jan. 1, 2006 (pos. A-4), the two clocks for the current LTST now run simultaneous to the Mars24 Sunclock LTST.


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Tman
post Jun 26 2008, 10:03 AM
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Don't know if it's in use occasionally by others at all, but I've noticed currently a few error requests for "greuti.ch/oppy/html/filenames.htm". I removed this version since the local true solar time version is more accurate - this week I added yet a listing for the decoded filenames http://www.greuti.ch/oppy/html/filenames_ltst.htm


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Tman
post Jul 6 2008, 12:38 PM
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Does someone feel like helping me on following problem?

I've tried to extend the filename decoding like this http://www.greuti.ch/oppy/html/rawimages_a...ames_decode.htm

I've in mind to enable looking at any images by selected date and parameters. Currently it doesn't work that way - only with given dates and (four) images, and thus given the other parameters yet) - because of the impossibility to readout directly in JavaScript the Exploratorium sites source codes such as http://qt.exploratorium.edu/mars/opportuni...cam/2008-06-22/
Also I'm not able to get it via a PHP code because my Hosting-Provider has disabled for security reasons the functions like this http://de3.php.net/manual/de/function.file-get-contents.php to read out external source codes (probably as the most providers too). And currently other languages aren't available to me (neither physically nor intellectually).

Now my (slight/pious hope) query is, if it's possible at all: Has someone already written (or would feel like programming) such a readout code in a capable language and would she/he lend it and give (a little) help to implement it along with my JS code? The aim would be to start this readout code along with the selected Exploratorium site/parameters and read out finally the strings like "1N267294587EFF90B0P1980L0M1.JPG" into an array within the JS code.

smile.gif The help would be noted in the JS code or at desire.


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vk3ukf
post Jul 14 2008, 10:52 AM
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QUOTE (Tman @ Jul 6 2008, 01:38 PM) *
Does someone feel like helping me on following problem?


Hi Tman, if there is anything in the source code for MERDAT, you are welcome to it my friend.

I am placing it online at the request of several MS members.

It was written using Borland Delphi 7, coding is a pascal variant.

I am familiar with basic, procol, forth and pascal, not much else I am afraid.

To see the actual code as text, rename the *.pas files as *.txt and wander around.

Hoping there is something in there you can sink your teeth into. It is a 9.34 MB download.

http://www.vk3ukf.com/vk3ukf_files/MERsrc/...odeJuly2008.zip

It is about 95% complete, I still need to go around and mark some things that need a tidy up, and just started to put Phoenix thought into it, back to 90% complete.

Is any software ever finished?

Any code comments that give the impression of banging ones head on the keyboard due to lack of knowledge, are in fact, exactly that.

MERDAT is now officially in the public domain.

All the best, Kevin.
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Tman
post Jul 14 2008, 12:39 PM
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Hi Kevin,

Nice and extensive program that you've written!
But whew! There are many of those *.pas files. Which of them would you recommend?
And then I have probably no clue how I could "it" let run along with my JavaScript smile.gif

Anyway Thanks!


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