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Decoding MER image filenames, playing around with javascript |
Jul 24 2007, 09:57 PM
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#1
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Member ![]() ![]() ![]() Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
For two weeks I'm newly playing around with javascript.
Though it's old hat and I have already something else to get the sols, I've written two scripts with a small HTML file for decoding the MER image filenames - just for fun. If you like here the links of them: Edited: http://www.greuti.ch/oppy/html/filenames_ltst.htm -------------------- |
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Jul 24 2007, 10:32 PM
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#2
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
Hey now that's really cool. Don't suppose you can put them both on the same page?
-------------------- If Occam had heard my theory, things would be very different now.
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Jul 25 2007, 10:00 AM
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#3
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Member ![]() ![]() ![]() Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
You're right, that's more comfortable.
For the script it makes only little difference (surprisingly). So there was still time to improve it a little with more information options. Edited: http://www.greuti.ch/oppy/html/filenames_ltst.htm -------------------- |
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Jul 25 2007, 10:56 AM
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#4
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Member ![]() ![]() ![]() Group: Members Posts: 940 Joined: 4-September 06 From: Boston Member No.: 1102 |
That's great. For the Pancam maybe your script could decode the filter to a wavelength?
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Jul 25 2007, 11:01 AM
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#5
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1621 Joined: 12-February 06 From: Bergerac - FR Member No.: 678 |
... or better : into a hexadecimal color code? Is it possible
Also, it's a very usefull tool that I bookmarked -------------------- |
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Jul 25 2007, 11:50 AM
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#6
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Member ![]() ![]() ![]() Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
That's great. For the Pancam maybe your script could decode the filter to a wavelength? Do you mean such as L2 = 753nm ? That information is already there. When you moving your mouse over "Camera Filter (Left or Right)" it should appear an additional window. -------------------- |
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Jul 25 2007, 01:55 PM
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#7
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14445 Joined: 8-February 04 Member No.: 1 |
... or better : into a hexadecimal color code? Is it possible Sort of : http://www.ominous-valve.com/pancam.html Doug |
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Jul 25 2007, 02:14 PM
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#8
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1621 Joined: 12-February 06 From: Bergerac - FR Member No.: 678 |
Okay, thanks Doug.
I've also found this, if anybody knows it : http://www.efg2.com/Lab/ScienceAndEngineering/Spectra.htm There is a software who permit to convert a wavelength into a bitmap picture. Very interesting -------------------- |
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Jul 25 2007, 02:56 PM
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#9
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
Wish I had that before I met you guys. I could never place the actual location of those filter wavelengths in the spectrum without looking them up. Now I don't need to because folks here do the things with the color (or colour) images far more efficiently than I ever had the time to perfect. Once you turn forty and acquire more patience, you learn that if you wait long enough an impatient person in their 20s will take up the difficult chores soon enough. -------------------- If Occam had heard my theory, things would be very different now.
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Jul 25 2007, 03:05 PM
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#10
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14445 Joined: 8-February 04 Member No.: 1 |
That's OK - I turn 30 next year
Doug |
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Jul 26 2007, 04:49 PM
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#11
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![]() Administrator ![]() ![]() ![]() ![]() Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Tman, this is really useful. Would it be possible for you to also include a conversion to the UTC date and time the image was taken? I am always having to convert between sol numbers and UTC dates and times.
--Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Jul 26 2007, 06:37 PM
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#12
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 4260 Joined: 17-January 05 Member No.: 152 |
This is very nice, Tman. I would add a request that the local solar time be included, as well. I'm often checking whether images on different sols were taken at similar local times. Some details on how this was done with the utility rawid are in this thread.
The rawid utility already gives all this information. But what caught my attention here is that this is coded in javascript. If I had javascript sol and local time code, I could easily write a bookmarklet to quickly get that info from a filename. And, far better still, I could easily write a Proxomitron filter to automatically add time of sol info to each thumbnail on the jpl mer thumbnail pages, and also to add sol and time columns to the exploratorium image pages. In fact, with your sol code I already have what I need to add sol columns to exploratorium. Do you mind if I use your javascript code for this, Tman? I'm drooling at the thought of this... |
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Jul 26 2007, 06:45 PM
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#13
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Member ![]() ![]() ![]() Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Tman, this is really useful. Would it be possible for you to also include a conversion to the UTC date and time the image was taken? At the moment I'm not in the know for such an extension. Currently I've tried to show the Local Solar Time too here , but my LST for all images/sols is 10 minutes behind the time in MMB for Spirit and 13 minutes for Oppy :-) don't know why. Additionally our both times are increasing different to the LST as shown in the first ~1000 Rover raw images on the MER site - up to more than one hour. So I'm currently rather in two minds about. I think/remember it was discussed about the mission times already here in the forum - but where? The dates are not dependent on these differences, but I'm not in the know how to calculate it in the script for each sol in the past and future. The spacecraft clocks (seconds) started in January 1, 2000 at 11:58:55.816 UTC and Mars's days are 2375,244 seconds longer than Earth's. -------------------- |
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Jul 26 2007, 07:05 PM
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#14
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Member ![]() ![]() ![]() Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Fred, I don't mind. It's nice if it's already so useful.
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Jul 27 2007, 12:27 PM
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#15
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![]() Member ![]() ![]() ![]() Group: Members Posts: 239 Joined: 20-April 05 From: Bruxelles, Belgium Member No.: 278 |
a part of code which I had already written for me
it's little beta version http://www.marsrovercenter.com/filename_decoder.aspx -------------------- |
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