upper right/center area

• by HMB6EQUJ5

  i can't get a grasp on it. any takers? crevice? odd shape boulder? "eye of horus"? 😉

  Posted February 5, 2015 5:58 PM

• by wassock moderator

  Depends how you look at it.
  Frome the greyscale JP2 imge on Hirise

  

  And the IRB colour version

  

  Both looked different to me in the full screen versions to how they appear in the crop. If you want to look for yourself it's at the far left about halfway up in both images

  Posted February 5, 2015 8:26 PM

• by HMB6EQUJ5

  ok, JP2 is rather large , so thanks wassock on the full screen. that aside i got it on HiRISE RGB color non-map bottom (lower right/center). Keeping in mind light from lower right of given image it appears to be more elevated than crevice, with a lateral indentation. There's a "cut" into it on the upper right (of given image) that does not seem to correspond to the "spidery troughs" in the area.

  I would be really interested in other's take on this.

  Posted February 6, 2015 2:03 AM

• by p.titchin in response to HMB6EQUJ5's comment.

  Hi HMB, looks like a mound to me, with ,as you say, an indentation across the top, so we can see 2 shadows, one in the 'indentation', and the second on the upper side of the mound (in the cropped image).~Pete

  Posted February 6, 2015 9:41 AM

• by HMB6EQUJ5

  Thx pete. That was my impression, interesting feature none the less. no telling if we may find a trace of the Mars Polar Lander sometime.

  Posted February 6, 2015 3:46 PM

• by pete-j

  From the HIRISE, the original image scale range is 49.8 cm/pixel (with 2 x 2 binning), the image is therefore ~418m x 323m. From a rough measurement of this image, the central feature would have an approximate diameter of just over 20m (my rough estimate).

  Could this be a collapsed region? Such as being fed by escaping gases from the #troughs, which seem roughly radial to this feature? Better resolution would probably 'resolve' this question...

  Cheers.

  Posted February 8, 2015 8:06 PM

• by JellyMonster

  Here is my version but doubt it it will help.

  

  Posted February 8, 2015 9:07 PM

• by HMB6EQUJ5

  thx pete & JellyMonster! Impression i get is of a butte formation with a linear crevice. The is also radial channel extensions it seems.

  Posted February 9, 2015 3:26 PM

• by Kitharode moderator

  An interesting object. It looks like a 'bump' to me rather than a depression. I can see the linear 'cut' across it. I'd say it was part of the surface area, rather than something on/in the surface. Good find.

  Posted February 9, 2015 4:26 PM

• by pete-j

  Perhaps a 'bump' within a depression or collapsed area? Much like you have a central peak within a crater (not implying this is a crater)...

  Posted February 9, 2015 6:39 PM

• by mschwamb scientist, translator

  Hiya,

  That feature is hard for me to tell. One of the rare features where if I rotate the image to the right sun angle it looks like a depression. I'm not sure the laser altimetry data from MOLA (which was aboard Mars Global Surveyer) has fine enough resolution to tell you for sure.

  Cheers,

  ~Meg

  Posted March 9, 2015 12:08 AM