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Chang'e 3 landing and first lunar day of operations, Including landing site geology and localization
TheAnt
post Jan 4 2014, 05:04 PM
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That spectra is KREEP-y. smile.gif
(Sorry couldn't resist.)
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stone
post Jan 6 2014, 01:18 PM
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QUOTE (Gerald @ Jan 3 2014, 05:27 PM) *
So it seems, they take iron-55 and cadmium-109 as nuclides for APXS.


Funny to see that they use similar isotopes like the Viking X Ray Fluorescence Experiment.

http://nssdc.gsfc.nasa.gov/nmc/experimentD...id=1975-075C-13

10.1029/JS082i028p04577
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Greenish
post Jan 7 2014, 03:18 PM
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For what it's worth, for a question re daylight hours for Chang'e-3 on the NSF forum, I used the JPL Horizons web interface and the coordinates from the LROC team (44.1214N, 340.4884E, 2640 meters elevation). This gives the following RTS (Rise, Transit, Set) times for the sun at Chang'e-3 site as follows for one year from Dec 2013.

(Note this refers to the geometric horizon defined by the reference ellipsoid (doesn't take terrain into account) but should be good within a few minutes at worst.) I'm sure many here have to tools to do as well or better but figured I'd post it for reference.

CODE
   Date__(UT)__HR:MN     Azi_(a-appr)_Elev
     ****************************************
      2013-Dec-11 15:39 *r   88.2308  -0.2697
      2013-Dec-19 04:38 *t  180.1299  47.1462
      2013-Dec-26 17:35  s  272.1149  -0.2745
      
      2014-Jan-10 05:28 *r   87.6417  -0.2674
      2014-Jan-17 19:08 *t  180.0261  47.4570
      2014-Jan-25 08:35  s  272.3790  -0.2736
      
      2014-Feb-08 20:01 *r   87.6683  -0.2695
      2014-Feb-16 09:23 *t  179.9142  47.3069
      2014-Feb-23 22:20  s  272.0071  -0.2702
      
      2014-Mar-10 10:49 *r   88.3043  -0.2645
      2014-Mar-17 22:59 *t  179.8359  46.7513
      2014-Mar-25 10:37  s  271.1326  -0.2677
      
      2014-Apr-09 01:15 *r   89.3338  -0.2645
      2014-Apr-16 11:44 *t  179.8155  45.9660
      2014-Apr-23 21:39  s  270.0287  -0.2697
      
      2014-May-08 14:53 *r   90.4598  -0.2622
      2014-May-15 23:39 *t  179.8403  45.1774
      2014-May-23 07:55  s  268.9939  -0.2649
      
      2014-Jun-07 03:30 *r   91.3783  -0.2578
      2014-Jun-14 10:59 *t  179.9134  44.5936
      2014-Jun-21 18:06  s  268.3079  -0.2679
      
      2014-Jul-06 15:07 *r   91.8526  -0.2584
      2014-Jul-13 22:04 *t  180.0097  44.3596
      2014-Jul-21 04:47  s  268.1288  -0.2662
      
      2014-Aug-05 02:00 *r   91.7720  -0.2594
      2014-Aug-12 09:16 *t  180.0987  44.5335
      2014-Aug-19 16:28  s  268.5118  -0.2671
      
      2014-Sep-03 12:34 *r   91.1504  -0.2633
      2014-Sep-10 20:58 *t  180.1791  45.0770
      2014-Sep-18 05:24  s  269.3683  -0.2673
      
      2014-Oct-02 23:22 *r   90.1449  -0.2617
      2014-Oct-10 09:24 *t  180.2062  45.8564
      2014-Oct-17 19:34  s  270.4885  -0.2705
      
      2014-Nov-01 10:54 *r   89.0064  -0.2668
      2014-Nov-08 22:42 *t  180.1828  46.6625
      2014-Nov-16 10:36  s  271.5589  -0.2699
      
      2014-Nov-30 23:36 *r   88.0716  -0.2645
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Mr Valiant
post Jan 7 2014, 06:21 PM
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Hurry up Sun smile.gif
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Phil Stooke
post Jan 7 2014, 07:04 PM
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Yes! One downside (like we needed another downside!) of waiting 37 years for another landing on the Moon is that we have forgotten what it was like to have to wait 2 weeks for the sun to rise.

It's almost as cold here in Ontario today as it is up there in Mare Imbrium. This joke now officially recycled from the much more comfortable Mars.

Phil


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kenny
post Jan 8 2014, 09:42 PM
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Seems a long 2 weeks - watching that danged terminator creep leftwards night after night, like a snail. Almost there now...
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Astro0
post Jan 9 2014, 07:29 AM
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Or to the right for those of us in the Southern Hemisphere smile.gif
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kenny
post Jan 9 2014, 10:39 AM
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Indeed! We mustn't be hemispherically prejudiced...
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Phil Stooke
post Jan 9 2014, 10:53 AM
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It's OK, Astro0... the terminator on the far side was moving to the left. You couldn't see it, but it was. It all depends on which hemisphere you are thinking of!

Phil



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PaulH51
post Jan 9 2014, 12:00 PM
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QUOTE (Phil Stooke @ Jan 9 2014, 06:53 PM) *
It's OK, Astro0... the terminator on the far side was moving to the left. You couldn't see it, but it was. It all depends on which hemisphere you are thinking of!
Phil

Or you could live a couple of degrees from the equator (like me) which throws a whole new light on the subject... pun intended smile.gif
Paul
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Thorsten Denk
post Jan 10 2014, 06:31 AM
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Sunrise is NOW! smile.gif

Thorsten
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craigmcg
post Jan 10 2014, 11:05 AM
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Therefore we must now be on the "second lunar day?" Goodbye to this thread?
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Cosmic Penguin
post Jan 10 2014, 12:40 PM
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More photos released, including the long-awaited "Earthshot" and top projected panorama from the lander and rover!

(in Chinese) http://slide.news.sina.com.cn/c/slide_1_2841_40326.htm


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PaulH51
post Jan 10 2014, 12:51 PM
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QUOTE (Cosmic Penguin @ Jan 10 2014, 08:40 PM) *
More photos released, including the long-awaited "Earthshot" and top projected panorama from the lander and rover!

(in Chinese) http://slide.news.sina.com.cn/c/slide_1_2841_40326.htm

I dont think you can load direct from that link.... Try this LINK then select the ChangE3 image (01/10 17:51)

EDIT - Great images... thanks for sharing smile.gif
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MahFL
post Jan 10 2014, 02:59 PM
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QUOTE (PaulH51 @ Jan 10 2014, 01:51 PM) *
I dont think you can load direct from that link.... Try this LINK then select the ChangE3 image (01/10 17:51)

EDIT - Great images... thanks for sharing smile.gif


Be careful if your at work, a pic of a women on her knees was on that page...
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