ExoMars - Schiaparelli landing |
ExoMars - Schiaparelli landing |
![]()
Post
#1
|
||
Solar System Cartographer ![]() ![]() ![]() ![]() Group: Members Posts: 10194 Joined: 5-April 05 From: Canada Member No.: 227 ![]() |
Starting a new topic here - hopefully that's OK! Clearly there will be a lot of action around this in the next weeks and months with descent images and HiRISE views of the hardware.
I thought I had posted this map earlier but apparently not. This shows the various landing ellipses in this area. The original plan was for an ellipse oriented NW-SE, but it changed with the different launch date and is now nearly E-W. Note that the ellipse shown in the recent ESA release is the envelope of all ellipses over a given launch period, but the actual landing ellipse for the given launch date is smaller. Opportunity's final landing ellipse is shown for comparison. http://exploration.esa.int/mars/57445-exom...6-landing-site/ http://exploration.esa.int/mars/57446-exom...6-landing-site/ 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 PD: 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) |
|
|
||
![]() |
![]()
Post
#2
|
|
![]() Member ![]() ![]() ![]() Group: Members Posts: 691 Joined: 21-December 07 From: Clatskanie, Oregon Member No.: 3988 ![]() |
There are two candidates that I spot in the Oppy images that have come down. But these really do look like CR hits to me. I wouldn't rule out the lander though.
![]() http://qt.exploratorium.edu/mars/opportuni...ARP2857L6M1.JPG http://qt.exploratorium.edu/mars/opportuni...ARP2857L6M1.JPG |
|
|
Guest_Steve5304_* |
![]()
Post
#3
|
Guests ![]() |
There are two candidates that I spot in the Oppy images that have come down. But these really do look like CR hits to me. I wouldn't rule out the lander though. ![]() http://qt.exploratorium.edu/mars/opportuni...ARP2857L6M1.JPG http://qt.exploratorium.edu/mars/opportuni...ARP2857L6M1.JPG Those definately are not cosmic Ray hits...pictures were taken some time apart and the second picture hives with the trajectory of the first that's definately the lander. |
|
|
![]()
Post
#4
|
|
![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 ![]() |
Those definately are not cosmic Ray hits... As I mentioned in the MER thread, this is daytime at Meridiani, so the exposures are very short. I wouldn't expect the lander to be streaked, especially since if anything we'd be seeing the slow end of the descent trajectory. So I think everything we see is consistent with CR's and noise. The real clincher would be a feature appearing in simultaneous L6/R2 frames, but I don't see anything matching. |
|
|
![]()
Post
#5
|
|
Member ![]() ![]() ![]() Group: Members Posts: 507 Joined: 10-September 08 Member No.: 4338 ![]() |
|
|
|
![]()
Post
#6
|
|
![]() Member ![]() ![]() ![]() Group: Members Posts: 691 Joined: 21-December 07 From: Clatskanie, Oregon Member No.: 3988 ![]() |
When pancam auto-exposes images through each filter, it does so until it reaches a specified DN value. If I recall, that is about a DN of 3000. So Images taken with L2 or R2 would have a lower exposure time then say images taken with L6, L7 or R1. You can even see this in the raws as you approach the blue and UV end, the images start to get more noiser from CR hits and hot pixels since it takes more time to reach the specified DN. So I'd expect L6 images would be in the few second range and If schiaparelli went through the FOV (which is now extremely unlikely if not ruled out since we know where it landed), I would think it would leave a small streak. Images taken with R2 would be a fast exposure and would likely not show a streak at all.
|
|
|
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 19th June 2024 - 02:21 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. |
![]() |