Distant vistas, Endeavour, Iazu, and beyond |
Distant vistas, Endeavour, Iazu, and beyond |
Jan 27 2010, 09:31 PM
Post
#1
|
||
Senior Member Group: Members Posts: 4262 Joined: 17-January 05 Member No.: 152 |
To answer Ustrax's querries from the other thread, I think we can now see more of the
The leftmost (Endeavour north rim) and middle (far rim) features look similar. But it looks like we can see more stuff on the right, which is Endeavour south rim and Iazu. The view we had a few sols ago (2133) of Iazu was still partly obscured by dunes, so it makes sense that we can see more now. I can't see Bopolu in the navcams, though it could be there and buried in the jpeg noise... |
|
|
||
Feb 3 2010, 10:00 AM
Post
#2
|
||||
Junior Member Group: Members Posts: 59 Joined: 18-July 07 From: London, UK Member No.: 2873 |
I've been meaning to post this for a while now, and the recent chat has spurred me on.
I've had a go at predicting what Opportunity can possibly see, both now and further along the predicted route. I took the HRSC topo for the area, overlaid a CTX image, plonked down a marker for (roughly) where I thought Oppy was at the time (about a week ago now), and then let ArcMap figure out what's visible for something 1.8 m off the ground at that point. I then tried again for a different point along the predicted path. So here's the base map for the area. The green dot is my poor attempt at a location. This is what might be visible at the moment (green is visible, red, er, isn't) And this is what might be visible in the future (from the red dot) This method is very sensitive to both the underlying DEM and the exact location you view from. I can get very different results by moving the marker just a tiny distance. So take it with a pinch of salt, and then add a bucket or so extra for good measure. It'd obviously be loads better if I could stick a HiRISE DEM underneath, as this method worked pretty well for the Pathfinder DEM. I'm actually hoping that the view heading down the gentle slope will be a lot better than this predicts. Pete |
|||
|
||||
Feb 3 2010, 01:53 PM
Post
#3
|
|
Senior Member Group: Moderator Posts: 4280 Joined: 19-April 05 From: .br at .es Member No.: 253 |
This method is very sensitive to both the underlying DEM and the exact location you view from. I can get very different results by moving the marker just a tiny distance. So take it with a pinch of salt, and then add a bucket or so extra for good measure. It'd obviously be loads better if I could stick a HiRISE DEM underneath, as this method worked pretty well for the Pathfinder DEM. My kingdom for a HiRISE DEM! |
|
|
Lo-Fi Version | Time is now: 10th November 2024 - 07:40 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. |