Author Topic: Chang'e-2 Images  (Read 7883 times)

Offline Apollo-phill

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Chang'e-2 Images
« on: 02/07/2012 08:54 AM »
Asian newspapers are reporting that China released some new hi-res images of the Moon taken by Change2 in past few days.

Anyone have a link to any of these images ?

Being a full Moon tonight "Snow Moon" (7 Feb) it would be great to see a new batch of images !

A-P
« Last Edit: 02/07/2012 05:41 PM by Satori »

Offline Galactic Penguin SST

Re: Chang'e 2 Images
« Reply #1 on: 02/07/2012 09:18 AM »
I've included some preview images of the full release on this post.

The complete batch of full resolution images (in .jp2 format) can be downloaded from here: ftp://DataRelease:[email protected]/PUBDATA/DataRelease/CE2/Global-50m-sc.rar (warning: file size is 1.38 GB!)
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Apollo-phill

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Re: Change2 Images
« Reply #2 on: 02/07/2012 01:48 PM »
Thanks for those images Galactic Penguin SST

The link tookme to some Rumba site ??

AP

Offline Galactic Penguin SST

Re: Change2 Images
« Reply #3 on: 02/07/2012 02:19 PM »
Thanks for those images Galactic Penguin SST

The link tookme to some Rumba site ??

AP

Try this online version:

http://159.226.88.30:8080/CE2release/cesMain.jsp
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Galactic Penguin SST

Re: Chang'e-2 Images
« Reply #4 on: 02/08/2012 03:30 AM »
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Moe Grills

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Re: Chang'e-2 Images
« Reply #5 on: 11/27/2012 07:06 PM »
A slight change of topic here (since this is an old thread).
I have tried to find the Toutatis flyby date for Chang'e 2.
One webpage says December, 13th.
Another says January.
Still another says March.
Space Calendar was no help.

  Somebody must have a verifiable NEO asteroid flyby date
for Chang'e 2.
« Last Edit: 12/05/2012 11:13 PM by Moe Grills »

Offline Hungry4info3

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Re: Chang'e-2 Images
« Reply #6 on: 11/27/2012 08:09 PM »
Mid-December, as determined by direct astrometric observations of the spacecraft.
http://www.projectpluto.com/pluto/mpecs/cheprobe.htm

Offline plutogno

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Re: Chang'e-2 Images
« Reply #7 on: 11/27/2012 09:33 PM »
  Somebody must have a verifiable NEO asteroid flyby date
for Chang'e 2.

there is a dedicated thread for CE2. from Chinese technical papers the date is 13 December
http://forum.nasaspaceflight.com/index.php?topic=19644.msg961832#msg961832

Offline Moe Grills

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Re: Chang'e-2 Images
« Reply #8 on: 12/05/2012 11:18 PM »
Well?...a little more than a week to go. I know that
Racshot will be busy surfing the Net to find the best
and most up-to-date sites for closeup images of the
asteroid by the spacecraft.

But....funny thing....the Chinese have not said anything about
flyby nonvisual experiments, like gravitometric measurements
that might be possible using the subtle Doppler shifting of the
spacecraft's radio waves by the weak gravity of such
an asteroid. 

Offline plutogno

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Re: Chang'e-2 Images
« Reply #9 on: 12/06/2012 09:41 AM »
as far as I know, only observations with the camera, laser altimeter and microwave radiometer are planned.
concerning the camera, its design is not suitable for imaging during a flyby, so only 2 pictures are expected: one on the inbound leg, the second on the outbound leg.
see for ex:
http://tech.groups.yahoo.com/group/mpml/message/27635
http://www.unmannedspaceflight.com/index.php?s=&showtopic=7433&view=findpost&p=195264
http://www.unmannedspaceflight.com/index.php?s=&showtopic=3105&view=findpost&p=185840

Offline Moe Grills

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Re: Chang'e-2 Images
« Reply #10 on: 12/06/2012 06:30 PM »
as far as I know, only observations with the camera, laser altimeter and microwave radiometer are planned.
concerning the camera, its design is not suitable for imaging during a flyby, so only 2 pictures are expected: one on the inbound leg, the second on the outbound leg.
see for ex:
http://tech.groups.yahoo.com/group/mpml/message/27635
http://www.unmannedspaceflight.com/index.php?s=&showtopic=7433&view=findpost&p=195264
http://www.unmannedspaceflight.com/index.php?s=&showtopic=3105&view=findpost&p=185840

If the Chinese space agency will be recording the frequency of the radio carrier wave(s) of Chang'e 2 with a high-degree of precision, I would
think ad hoc Doppler shift measurements, and gravitometric experiments,
would be possible.
Of course, the asteroid might be too far, and its gravity too weak for
such measurements. But I suppose we can cross our fingers, can't we?

Offline Moe Grills

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Re: Chang'e-2 Images
« Reply #11 on: 12/13/2012 11:47 PM »
There are excellent close approach radar images of 4179 Toutatis
now available.
No! I won't post them here. That's racshot's job.  ;D

Offline cjd

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Re: Chang'e-2 Images
« Reply #12 on: 12/15/2012 06:58 AM »
Flyby images now available  ;D

Relative speed at 10.73 km/s
Closest flyby at 3.2 km altitude
Maximum resolution 10 meters

Offline Moe Grills

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Re: Chang'e-2 Images
« Reply #13 on: 12/16/2012 09:55 PM »
Flyby images now available  ;D

Relative speed at 10.73 km/s
Closest flyby at 3.2 km altitude
Maximum resolution 10 meters

WOW! Thank you.

Congrats to the Chinese. They have every right to name
features on that celestial body.

Offline Ben the Space Brit

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Re: Chang'e-2 Images
« Reply #14 on: 12/18/2012 12:15 PM »
@ cjd

That's one red rock! Is that real colour or some kind of enhanced false colour for geochemical/geological analysis?
"Oops! I left the silly thing in reverse!" - Duck Dodgers

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Offline Moe Grills

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Re: Chang'e-2 Images
« Reply #15 on: 12/18/2012 07:01 PM »
@ cjd

That's one red rock! Is that real colour or some kind of enhanced false colour for geochemical/geological analysis?

It could be converted gray tones, like Ted Turner does to old B&W movies.
Doesn't matter. Science and technology are such now that a B&W photo
of yourself can be converted into realistic color by special computer software that analyze gray tones and scale.

   BTW, the close flyby? 3.2 klicks? That's AWESOME close! I suspect, Chinese technicians may have recorded the carrier waves of the craft's radio transmissions and thus may be in a promising position to measure even faint Doppler shifts from the flyby to get the NEO object's mass, mean surface gravity and density.


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