Philae landing on the nucleus of Comet 67P C-G Options

[fredk]

The distance to Perihelion Cliff looks (as mentioned) on the order of 10 meters, with a height of 20 meters.

It's hard to see exactly where the base of the cliff is from these images, but I think it's got to be much closer than 10 metres. Looking at my animation above or ZLD's morph I think the base could be as close as 2.5 metres. On this image I've put the lander approximately to scale (based on the stated 20x20 metre fov), and indicated with an arrow a possible distance to the base:

I've made no effort to get the orientation of the lander right. A 10 metre distance from the lander would be the right edge of the frame.

[climber]

I don't remember having seing bounce marks so clearly. From Dr Chris Tibbs tweet: https://twitter.com/chris_tibbs/status/611077375187677184

[Herobrine]

I don't remember having seing bounce marks so clearly. From Dr Chris Tibbs tweet: https://twitter.com/chris_tibbs/status/611077375187677184

I was thinking the same thing during that press conference. I remember being able to see the marks, but not like that. That may be OSIRIS imagery not released at the time.

[stevesliva]

I was thinking the same thing during that press conference. I remember being able to see the marks, but not like that. That may be OSIRIS imagery not released at the time.

Well, you see, they can't risk that someone's not going to take that one image and run to Science, Nature, and Icarus with a paper describing the geomorphology of the comet.
/sarcasm

[4throck]

Some interesting images from today's press conference.

[Paolo]

Some interesting images from today's press conference.

I don't know if the various graphs and the schedule diagrams were readable in ESA's feed. in case anyone is interested, I have taken readable images of all (or most) of them...

[fredk]

The 3rd of 4throck's images posted above has some unreadably small text towards the top. Generally I'm wondering what is the basis for the terrain model in that image, and in 4throck's first image above. Are these just reconstructions based on the civa/rolis images (and hence based entirely on guesswork outside their frames), or are they actual DTM's based on stereo imagery of the candidate lander site announced last week? It wasn't clear to me from the press conference.

[4throck]

That 3rd image looks like a Celestia screenshot. The text is small but the menus seems the same.
I'm unsure about that 3D model. Perhaps it's just the general landing area with the lander out of scale.


The surface model on image 1 seems to have a compatible resolution with last week candidate site images.
And a good match with the actual surface images :-)

[Paolo]

The 3rd of 4throck's images posted above has some unreadably small text towards the top.

there was text on both upper left and upper right corners, but it's not very readable in my pics either. maybe you can try some sharpening....

Attached thumbnail(s)

 

[4throck]

Indeed seems like Celestia. Here's how that program looks:

[Herobrine]

there was text on both upper left and upper right corners, but it's not very readable in my pics either. maybe you can try some sharpening....

http://www.unmannedspaceflight.com/index.p...st&id=36143

File Navigation Time Display Book
Philae_Eme2000Axes
Distance: 698.15 m
Radius: 30.000 m
Apparent diameter: 4°43'21.1"
Phase angle: 11.5°


http://www.unmannedspaceflight.com/index.p...st&id=36144

Thu 13 Nov 2014 07:4
Time stopped


EDIT: Changed "30,000 m" to "30.000 m" (those may actually be ","s if they use them as the decimal separator, as many countries do; I interpreted them as "."s because that's what I'm used to). I have no idea what the object was, but I checked what apparent diameter you get for a 30 m radius sphere from 698.15 m above its surface and it's 4° 43' 21.1568", which is consistent with the numbers I interpreted from the images. I didn't use any software to improve the image; I just read it as best I could and the numbers seem consistent.

[Paolo]

I have put all my pics of the Rosetta press conf here: https://www.flickr.com/photos/9228922@N03/s...157654438789969

[4throck]

Updated highres CIVA images published here:
http://www.esa.int/spaceinimages/Images/2015/07

[Herobrine]

Updated highres CIVA images published here:
http://www.esa.int/spaceinimages/Images/2015/07

I'm seeing stuff from ROLIS, CONSERT, MUPUS, and CIVA. Based on the kind of stuff that just got suddenly published on that site, and the quality of it, I'm guessing ESA recently received their first block of 67P science data from some of the instrument teams.

[Bill Harris]

Papers are starting to be published on the Rosetta/Philae science at 67P and the Rosetta outreach team is good about sharing new publications.

--Bill