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  #91 (permalink)  
Old 01-October-2009, 01:13 PM
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Not convincing at all:

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After an image is acquired by the HiRISE camera, it takes about 15 minutes to transmit it from the spacecraft to Earth, via the Deep Space Network (DSN). It can take a few hours for the data to be transmitted from the DSN to JPL, and JPL then sends the data to HiROC within an hour. Once an image is received by HiROC computers, it takes about two hours for our pipelines to process it. We then have to wait a week for the ephemerides (position of spacecraft relative to Mars) data to be constructed. After that, it takes about two hours to complete the remainder of the image processing.
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  #92 (permalink)  
Old 01-October-2009, 04:26 PM
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Quote:
Originally Posted by Hungry4info View Post
That's what I thought too, but on Universe Today, the image there has the TV camera labeled. I figured the TV camera was smaller than the flag, and since the flag didn't show up, that the material was destroyed due to 40 years of exposure (I read somewhere the flag was nylon?).

The flag really wouldn't show up if it was still there? I recall the flag was knocked over during the lift-off of the ascent module, so I would assume it would at least give maybe one pixel of evidence of its presence? (again, assuming it wasn't destroyed in the 40 years since).

Edit: not advocating anything ATM
The flag was nylon and has undoubtedly evaporated under the influence of UV radiation over the last 40 years.
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  #93 (permalink)  
Old 01-October-2009, 04:28 PM
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Quote:
Originally Posted by Zvezdichko View Post
Yet the big question remains: The image was taken in July, two days before the big press conference. Looks like they tried to photograph not only Apollo, but also the Surveyors. Yet a day before the anniversary only the images of the Apollo sites were made public.
Releasing an image of a Surveyor on the ground would have been rather an anticlimax after all the Apollo images, I should think. And I wonder how long it took to confirm that they had captured the Surveyor - they might have had other priorities in the meantime and only recently verified that they had a Surveyor image.
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Old 01-October-2009, 05:08 PM
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Actually, I feel just the opposite of Zvezdichko...I'm suprised at how quickly the landing site images were released.
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  #95 (permalink)  
Old 01-October-2009, 05:23 PM
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This is probably because you're not striving to see it as fast as possible.
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  #96 (permalink)  
Old 01-October-2009, 06:01 PM
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Quote:
Originally Posted by Zvezdichko View Post
Not convincing at all:
Don't forget that those times are from the HiRISE FAQ, an instrument that has been in use several years now, with lots of experienced operators knowing every little quirck and all the unexpected external factors that influence image quality.

LROC had only been in orbit a few weeks, and LRO was still in it's commissioning phase. I imagine the team had other activities to worry about, including the Apollo imaging. So I'm really not suprised that this data was shelved for a while, maybe even until the commissioning phase was over and the science phase would begin. Who knows how much data they took during commissioning, and how large an eventual backlog in processing there is at any given time?

Anyway, an email to someone in the LROC team might clear things up, but whatever the reason was for the delay, it seems quite unfair to me to blame a PI for not being as insisting as Squyers was (and could be, considering the difference in instrument types).
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  #97 (permalink)  
Old 06-October-2009, 02:34 AM
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Quote:
Originally Posted by ToSeek View Post
The flag was nylon and has undoubtedly evaporated under the influence of UV radiation over the last 40 years.
Alright, that's pretty much what I assumed would happen.
Thanks =)
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  #98 (permalink)  
Old 29-October-2009, 02:04 AM
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Apollo 17 flag:

LROC: Exploring the Apollo 17 Site

From the 50-km mapping orbit.

Quote:
The descent stage of the lunar module Challenger is now clearly visible, at 50-cm per pixel (angular resolution) the descent stage deck is eight pixels across (four meters), and the legs are also now distinguishable.
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  #99 (permalink)  
Old 02-November-2009, 11:07 PM
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I see no star and stripes.
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  #100 (permalink)  
Old 03-November-2009, 12:06 AM
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Originally Posted by Glom View Post
I see no star and stripes.
Get up close. Bang your head on your monitor.

At least you'll see stars.
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  #101 (permalink)  
Old 03-November-2009, 01:26 PM
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Can anyone summarise where to look on the original long strip images to zoom in to find the closeup views of the landing sites thus far imaged?

Also, have they found any of the LM ascent stage impact sites yet?
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  #102 (permalink)  
Old 03-November-2009, 04:38 PM
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Quote:
Originally Posted by ToSeek View Post
The flag was nylon and has undoubtedly evaporated under the influence of UV radiation over the last 40 years.
I've long subscribed to this idea as well but going by the latest LRO images, the flag seems to be at least somewhat intact based on the shadow it appears to be casting. Now, I'm imagining a fragile, wispy thing just barely holding itself together, waiting to be blown away by a breeze that will never come.
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  #103 (permalink)  
Old 03-November-2009, 04:52 PM
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Pretty cool images!
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  #104 (permalink)  
Old 10-November-2009, 04:38 AM
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BA Blog: One Giant Leap seen again

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See the red arrow, and where it’s pointing? That arrow is pointing to a place that changed humanity forever. You can divide all of history between the time before and the time after what happened where that arrow points.
You see, that arrow is pointing to the spot, the very spot, where Neil Armstrong became the first human to step on another world.
Yeah.
This image is from the Lunar Reconnaissance Orbiter, and it shows the Apollo 11 landing site. We’ve seen it before, but this time LRO is in its 50 km mapping orbit, so the resolution on this image is far higher — about 50 or centimeters (20 inches). In this image, the tracks made by Armstrong and Buzz Aldrin as they scampered on the Moon for 2 hours and 31 minutes are obvious. You can even see the lander footpads, each just less than a meter (a bit over a yard) across.
NASA Image Feature: LRO Gets Additional View of Apollo 11 Landing Site



Quote:
This is LROC's first picture of Apollo 11 after LRO dropped into its 50 km mapping orbit. At this altitude, very small details of Tranquility Base can be discerned. The footpads of the LM are clearly discernible. Components of the Early Apollo Science Experiments Package (EASEP) are easily seen, as well.
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  #105 (permalink)  
Old 10-November-2009, 08:30 AM
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Good time of day to take the shot it seems. All the equipment is reflecting a lot of light.

What was the little traverse that they did to the East?
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  #106 (permalink)  
Old 10-November-2009, 01:00 PM
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You mean the tracks leading off at the 3 o'clock position? That was Armstrong's unscheduled jaunt over to Little West Crater, which he thought looked interesting as he flew over it during the descent and happened to notice was within walking distance.
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  #107 (permalink)  
Old 10-November-2009, 08:58 PM
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Quote:
Originally Posted by 01101001 View Post
...
On that photo, in the enlarged version I noticed that a circular area around the landing stage with a diameter about the width of the caption "Apollo 11 site" is slightly brighter than the surroundings.

I'm guessing this is caused by either:

1. a little photochop to lighten up the landing site, or

2. extra sunlight being reflected off the shiny bits of the landing stage, or

3. a cover of dust that was stirred up during the landing and the take off, which now lies slightly looser on the surface than the surrounding dust and thus reflects more sunlight, or

4. pure coincidence.

Am I close?

The area around the "West Crater" on the right of the image also shows brighter areas, much brighter, which seem to follow impact sediment lines.

So maybe the only slightly bright and more symmetrical circle around the landing stage really is from stirred up (and now loose) dust.
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  #108 (permalink)  
Old 10-November-2009, 09:18 PM
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It really helps you realize how they didn't go very far at all on the lunar surface on that first mission.
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  #109 (permalink)  
Old 10-November-2009, 09:20 PM
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I'm guessing #3, dust stirred up by the landing stage rocket. In other words, the "missing crater" commonly referred to by hoax believers. It's there, it just isn't much of a crater.
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  #110 (permalink)  
Old 13-November-2009, 02:39 AM
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Quote:
Originally Posted by 01101001 View Post
Get up close. Bang your head on your monitor.

At least you'll see stars.
He'll see stars if he wiggles his head back and forth, violently.
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  #111 (permalink)  
Old 14-November-2009, 06:47 PM
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Red face Tranquility Base

LRO video of Apollo 11 LS...

http://www.universetoday.com/2009/11...-base-via-lro/

enjoy
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  #112 (permalink)  
Old 12-January-2010, 08:25 PM
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Just a quick bump because The Big Picture has a set of LRO images, including Apollo landing sites, interspersed with some Apollo photos of the same locations.
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  #113 (permalink)  
Old 12-January-2010, 08:53 PM
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Great. Thanks!
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  #114 (permalink)  
Old 12-January-2010, 09:17 PM
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Some amazing photos. I especially like the one of Mare Humbaldtianum.

Shame those pesky astronauts had to make a mess of the dust.
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