Instrument commissioning phase, Beginning final approach to the comet |
Instrument commissioning phase, Beginning final approach to the comet |
Jul 11 2014, 04:18 PM
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#46
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Solar System Cartographer Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227 |
Despite the appearance of complete over-exposure on the nucleus, there is some subtle detail which can be brought out by careful processing. But it may be spurious! - so you can't really interpret anything from it.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Jul 11 2014, 05:46 PM
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#47
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
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Jul 11 2014, 07:19 PM
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#48
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Member Group: Members Posts: 282 Joined: 18-June 04 Member No.: 84 |
With those images being taken a week ago, I would bet they are probably resolving surface features now.
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Jul 14 2014, 12:19 PM
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#49
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Forum Contributor Group: Members Posts: 1372 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
Shouldn't we have a new topic ?, we are past the commissioning phase.
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Jul 14 2014, 01:36 PM
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#50
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
This thread isn't very full yet, though it might need renaming to include approach imaging. I think it would make sense to start a new thread at the official date of the Mapping Phase, which is given here as August 18.
CODE .====================================================================
| Phase |Start Date|Main Event| End Date |Dur |SunDist(AU)| |=================|==========|==========|==========|====|===========| {snip} |-----------------|----------|----------|----------|----|-----------| |Cruise 6 (DSHM) |14/07/2011| |22/01/2014| 917| 4.49-5.29 | |-----------------|----------|----------|----------|----|-----------| |Rendez-vousMan2 |23/01/2014| |17/08/2014| 206| 3.53-4.49 | | ->RVM2 | |23/05/2014| | | | |-----------------|----------|----------|----------|----|-----------| |Global Mapping |18/08/2014| |19/10/2014| 63 | 3.15-3.53 | |and Close | | | | | | |Observation | | | | | | |-----------------|----------|----------|----------|----|-----------| |Lander Delivery |20/10/2014| |16/11/2014| 28 | 2.97-3.15 | |->Lander Delivery| |11/11/2014| | | | |-----------------|----------|----------|----------|----|-----------| |Comet Escort |17/11/2014| |31/12/2015| 410| 1.24-2.97 | '-------------------------------------------------------------------' -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Jul 15 2014, 02:33 PM
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#51
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
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Jul 15 2014, 02:56 PM
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#52
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
This is really wow!
I've taken this into account for a few seconds, and then ruled it almost out due to the rapid rotation, but missed to verify my presumption. I'm sure it's now possible to calculate an estimate of the lower bound for the density of the comet not to break apart into a true binary. ... Which one is Churyumov, and which is Gerasimenko? |
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Jul 15 2014, 03:06 PM
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#53
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Senior Member Group: Members Posts: 1074 Joined: 21-September 07 From: Québec, Canada Member No.: 3908 |
***jaw drops!!!*** Quick Rosetta update: Churyumov-Gerasimenko is a contact binary! Noyau de la comète 67P Churyumov-Gerasimenko The YouTube video has been removed, and also the CNES page referenced in Emily's blog post. Try this link (in French). A Google search for "double nucleus Churyumov" should turn up other references. |
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Jul 15 2014, 03:46 PM
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#54
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
... Which one is Churyumov, and which is Gerasimenko? Hey, I think IAU could seriously consider your naming proposal! anyway, from these first images both objects seems to have the same specular symmetry... incredible amazing nucleus, for sure! -------------------- I always think before posting! - Marco -
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Jul 15 2014, 03:53 PM
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#55
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IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
Wow, this is going to be an even more interesting mission than I was expecting. Interestingly, there are hints of the two components in Phil's and Gerald's heavily processed versions of the earlier images (although it was impossible to tell back then exactly what the images were showing).
Which one is Churyumov, and which is Gerasimenko? Suddenly the comet's 'long' name has become much better and more appropriate than before. |
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Jul 15 2014, 04:20 PM
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#56
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Senior Member Group: Members Posts: 2077 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Still nothing on the official ESA pages, or twitter for that matter! The video gas been removed from YouTube too...
I always wondered about the view from something like that trojan Hektor, and how it would be decades before anyone landed on something; guess it won't be that long after all! |
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Jul 15 2014, 04:42 PM
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#57
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Things could get VERY interesting dynamically when Rosetta achieves orbit. I wonder where the barycenter of the two 'lobes' is gonna turn out to be, esp. if there's a significant difference in density or internal material distribution between them. Might facilitate determining the internal structure of each quite a bit.
-------------------- 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.
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Jul 15 2014, 05:10 PM
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#58
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Senior Member Group: Members Posts: 2077 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Don't forget that now we have an unexpected choice of landing, and Philae's anchors are looking (ironically) like a liability! No hopping around!
Just let it be somewhere in view of both components; it would be straight out of science fiction. Just serves to show how bizarre things can get in places of such low gravity. |
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Jul 15 2014, 05:24 PM
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#59
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Solar System Cartographer Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227 |
There is a lot of interesting detail hidden in the bright areas. I'm not posting anything now, but if you can play with images, have a look. I will not post until an official release is available.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Jul 15 2014, 07:19 PM
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#60
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Solar System Cartographer Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227 |
For a preview of surface views on a contact binary, you might enjoy these images from NEAR at Eros - not on the surface, but the low altitude makes it look similar.
Phil http://near.jhuapl.edu/iod/20010108/index.html http://near.jhuapl.edu/iod/20001212/index.html -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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