China to the Moon - Chang'e 1 and 2, Chinese unmanned lunar orbiters |
China to the Moon - Chang'e 1 and 2, Chinese unmanned lunar orbiters |
Dec 3 2007, 06:02 PM
Post
#61
|
|
Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
http://www.telegraph.co.uk/news/main.jhtml...3/wchina103.xml
The two are obviously not the same image, and if confirmed, that extra crater is an astonishing find. Doug |
|
|
Dec 3 2007, 07:25 PM
Post
#62
|
|
Solar System Cartographer Group: Members Posts: 10231 Joined: 5-April 05 From: Canada Member No.: 227 |
The 'new' crater doesn't look at all fresh in the high resolution version. Is is a bad seam in the mosaic? I can't see any other evidence of a bad seam, but it might be.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
|
|
Guest_Zvezdichko_* |
Dec 3 2007, 08:24 PM
Post
#63
|
Guests |
Well, this photo is obviously *not* fake, because it's difficult to "Photoshop" the angles of the shadows.
And I don't think this is the right place to discuss conspiracy theories. I'm tired of this awful Apollo Moon Hoax, because the situation in Bulgaria is bad enough and every time I start to talk about astronautics I get the same - the "Americans never went to the Moon." I really don't want to hear any more rumours that even unmanned Moon missions are fake. I have a web site that was supposed to be dedicated to spaceflight. Now it's a place to debunk hoax theories and it's sad that people believe in this nonsence. |
|
|
Dec 3 2007, 08:46 PM
Post
#64
|
|||
Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Also, what NASA spacecraft would have taken a picture in 2005? Perhaps they refer to a Clementine mosaic released in 2005 -- is that it? I think that they are in fact showing part of the Clementine base map.
Here is an original Clementine image (not from the base map) of the same area. It's a 750 nm UVVIS image. (Source) The Telegraph article showed a crop from a low-res version of the Chang'e image. Here is a crop from the full-res Chang'e image, which does indeed seem to show a new feature in the position highlighted in the article. What do you think, Phil? A closeup on the area: My two cents: look how much more detail is visible in the Chang'e image, even though they are at similar resolutions, and even though the Chang'e image has been JPEG-compressed, while the Clementine one is original data presented in GIF format, so it's losslessly compressed... --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
|
||
|
|||
Dec 3 2007, 09:36 PM
Post
#65
|
||
Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Aha -- I figured it out! The apparent new feature is a result of an image seam, as Phil suggested. Here's a sloppily reconstructed version.
--Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
|
|
|
||
Dec 3 2007, 09:44 PM
Post
#66
|
|
Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
It is clearly a double image of the same crater, caused by improper assembly of the mosaic - this is common on early releases in a mission.. On the new image, you may notice that the crater within the crater on the left side is visible, just as in the Clementine image, but the crater abruptly fades out to the right. On the "upper crater" in China's new image, the crater fades out at about the same place horizontally in the image, which in this case is on the left side. If you look at the little crater along the rim at the 2:00 position, it is in exactly the same place in both images. Looking below the crater, you will also notice the slightly diagonal (close to vertical) little trough visible in the Clementine image is also double.
-------------------- |
|
|
Dec 3 2007, 09:45 PM
Post
#67
|
|
Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
Aha -- I figured it out! --Emily You beat me to it while I was typing -------------------- |
|
|
Dec 4 2007, 12:21 AM
Post
#68
|
|
Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Bravo...not only imagesmiths, but imagesleuths! Well done, Emily & Ted!
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
|
|
|
Dec 4 2007, 04:02 AM
Post
#69
|
|
Junior Member Group: Members Posts: 52 Joined: 24-November 05 From: Tokyo Member No.: 571 |
I found cool 3-D images taken by Chang'e at a Chinese news site:
http://news.sina.com.cn/c/2007-12-02/150914433606.shtml |
|
|
Dec 4 2007, 11:31 PM
Post
#70
|
|
Member Group: Members Posts: 447 Joined: 1-July 05 From: New York City Member No.: 424 |
|
|
|
Dec 5 2007, 08:48 AM
Post
#71
|
|
Member Group: Members Posts: 118 Joined: 18-November 07 Member No.: 3964 |
msnbc cosmic log says: "Lakdawalla's explanation would be embarrassing for Beijing, but it makes the most sense as the solution to this week's moon photo mystery."
I wouldn't want to be the poor guy who processed that image... |
|
|
Dec 5 2007, 02:40 PM
Post
#72
|
|
Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
amazing story on the blog Emily. well done! This kind of stuff really brings solar system exploration to your own living room!
|
|
|
Dec 5 2007, 06:46 PM
Post
#73
|
|
Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
I wouldn't want to be the poor guy who processed that image... Actually I think whoever processed the image did a nice job -- it's a really pretty product. If anyone should feel embarassment it's the chief scientist who pointed out that feature as a new crater, but really even that wouldn't have been a big deal if it hadn't been wrapped up in the fakery story. It's like that first Viking photo that was erroneously given a blue sky. A mistake early in a mission that can be fixed later -- but unfortunately not before it spawns a million conspiracy theories.Thanks for the compliments, guys. I think the lesson here is that when there are whole data sets available on the Internet in an unprocessed format, it's not hard for regular people to argue against conspiracy theories. I think the Chinese might benefit from posting some of the original image strips in question so you can see what the raw materials were for their beautiful image. --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
|
|
|
Dec 6 2007, 02:52 AM
Post
#74
|
|
Newbie Group: Members Posts: 6 Joined: 25-November 07 Member No.: 3968 |
.
|
|
|
Dec 10 2007, 12:51 AM
Post
#75
|
|
Solar System Cartographer Group: Members Posts: 10231 Joined: 5-April 05 From: Canada Member No.: 227 |
New Chang-e 1 images here:
http://news.xinhuanet.com/english/2007-12/...ent_7221256.htm (go to page 3 for the new item, the Alphonsus area of the central nearside) Come on Kaggers! They're going to ovetake you in the PR stakes. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
|
|
Lo-Fi Version | Time is now: 28th September 2024 - 02:36 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |