Author Topic: Spacecraft or Space Debris  (Read 180331 times)

jumpjack

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Re: Spacecraft or Space Debris
« Reply #390 on: July 26, 2011, 04:15:27 pm »
Don't forget to check out this week's Image of the Week
And the blog.
 :)
cool! ;-)

jumpjack

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Re: Spacecraft or Space Debris
« Reply #391 on: July 26, 2011, 04:31:34 pm »
Anyway, don't forget what ACTUALLY was left behind by the apollo missions!


That's why I posted the youtube video, from which I got this and other shots (blog updated)

jules

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Re: Spacecraft or Space Debris
« Reply #392 on: July 26, 2011, 05:18:32 pm »
True! Shame there isn't a photo of the Apollo 11 descent module.
(I know it would look the same! ;) )

Tom128

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Re: Spacecraft or Space Debris
« Reply #393 on: July 26, 2011, 11:19:14 pm »
The lunar laser ranging retroreflector array dropped off by Apollo 15 is still working properly after all these years.





"Corner Cube Prisms (aka. retroreflectors)"  I would like one  :)



http://www.physics.ucsd.edu/~tmurphy/apollo/lrrr.html



http://www.nasa.gov/mission_pages/LRO/multimedia/lroimages/lroc-20100413-apollo15-LRRR.html

« Last Edit: July 27, 2011, 12:27:18 am by Tom128 »

Tom128

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Re: Spacecraft or Space Debris
« Reply #394 on: August 10, 2011, 02:37:13 pm »
Do you think this may be another "Crash or Coincidence" area?  The two black items of interest are approximately 20-30 feet wide   ::)



ACT-REACT http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=130340.78444&mcy=121233.1352&mz=16&ml=FFFB00TT

NAC photo strip http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-3-CDR-V1.0/M109209308LC
« Last Edit: August 10, 2011, 03:06:16 pm by Tom128 »

Geoff

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Re: Spacecraft or Space Debris
« Reply #395 on: August 10, 2011, 03:10:05 pm »
Do you think this may be another "Crash or Coincidence" area?  The two black items of interest are approximately 20-30 feet wide   ::)


The coordinates (Lat: 4.0, Lon: 4.3) aren't in the list of known landers. Not sure what these could be.

Geoff

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Re: Spacecraft or Space Debris
« Reply #396 on: August 13, 2011, 03:39:06 pm »
I've recently updated the Lunar Lander Coordinates thread and added more landers for anyone who wants to search for a lander we haven't found yet!

jules

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Re: Spacecraft or Space Debris
« Reply #397 on: August 13, 2011, 04:24:22 pm »
Great job there Geoff! I think we have our work cut out trying to find them. :)

JFincannon

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Re: Spacecraft or Space Debris
« Reply #398 on: August 20, 2011, 02:57:57 pm »
I had not seen this before, but since LRO is supposed to reimage the Apollo sites, I thought I would bring up the shadow casting of the flags.

I had seen that the LRO-ASU presentation that the Apollo 17 site had the flag still there, but it had been shown as a dot.  Yet, if you examine the images at various Sun angles, you can see the shadow cast by the flag on the flag pole.  Obviously when the Sun is directly overhead, you will see a dot if the flag is “up”.  But for other Sun angles, the area of the shadow changes as it is cast over more terrain.  Seeing the movement over a range of Sun angles is the best proof it is a flag on a pole.

This is an animated GIF showing key Apollo 17 site images.


This image shows the first frame and where the starting flag shadow is.


Animated gif with flag shadow pointer guide.


Both Apollo 12, 16 have some similar shadow casting showing that the pole is still up and a flag is attached.

Apollo 15 doesn’t have an obvious shadow cast although it is in a position to be able to cast shadows that can be seen.  So it's pole or the flag fabric might have been knocked down.

Apollo 14 has the flag in a bad location such that shadow casting at various sun angles is not apparent.
« Last Edit: August 22, 2011, 07:26:17 pm by JFincannon »

jules

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Re: Spacecraft or Space Debris
« Reply #399 on: August 20, 2011, 03:01:39 pm »
I was hoping the new images would show the flags a little better but this is surprisingly good! Look at that flag "fly"!!

JFincannon

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Re: Spacecraft or Space Debris
« Reply #400 on: August 20, 2011, 03:06:01 pm »
One other issue regarding the Apollo 11 flag which may or may not have been discussed before....
Looking at other LRO images of the Apollo 11 site, the only one that seems to show something in the location of the flag is
http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-3-CDR-V1.0/M139755141RC
which was taken when the Sun was 8.77 degrees from directly above and LRO was directly overhead.  This means you would get the best reflection off a surface lying flat.  I include a map from the Apollo 11 preliminary science report.


Here is the one image which shows a bright spot near where the flag should be.




http://www.hq.nasa.gov/alsj/a11/a11postevadacpan2pg4.jpg
This link is a picture from the LEM in the direction of the flag.  No other LRO Apollo 11 site image shows anything I can see as a cast shadow or dot of the flag.
Hopefully the new pictures will have more detail.

jumpjack

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Re: Spacecraft or Space Debris
« Reply #401 on: August 22, 2011, 02:30:54 pm »


This is an animated GIF showing key Apollo 17 site images.



amazing job!

JFincannon

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Re: Spacecraft or Space Debris
« Reply #402 on: August 22, 2011, 04:36:22 pm »
Apollo 16 images at different Sun angles showing the flag shadow indicating flag is still on its pole.


JFincannon

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Re: Spacecraft or Space Debris
« Reply #403 on: August 23, 2011, 07:28:23 pm »
Apollo 12 flag and pole casting a shadow at different sun angles.


jules

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Re: Spacecraft or Space Debris
« Reply #404 on: August 23, 2011, 07:30:31 pm »
More Apollo flag waving goodness!! 8) 8) 8)