This is a image that relates (as far as I can tell) the on-ground features seen by Oppy to the MOC orbital view of Erebus. The ground image is a panorama from two Pancam images taken on Sol 601, stretched 3x, and the MOC image is R1500822.
Interesting dune/ripple structure ahead.
--Bill
Full Version: Opportunity Route Map
Pages: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72
Added second portion of Sol601 path (and refined previous one).
It was though, but now I'm confortable with these results (matching with satellite image features is impressive!
).
It was though, but now I'm confortable with these results (matching with satellite image features is impressive!
).
dilo, it just can't be said often enough: those road maps are just brilliant !
I really could think of no better/more informative way to follow Oppy's progress through the etched terrain ...
It's almost like following the rover overhead with a helicopter
keep up this great work !
I really could think of no better/more informative way to follow Oppy's progress through the etched terrain ...
It's almost like following the rover overhead with a helicopter
keep up this great work !
The Oppy's policy to follow all etched terrain is a very good idea. This will provide the maximum science benefit and also provides the safest way to go toward first to Erbus and later to Victoria craters.
Rodolfo
Rodolfo
hem... I am a little bit worried from last hazcam images (see left wheel in particular 
):
http://qt.exploratorium.edu/mars/opportuni...FSP1214L0M1.JPG
PS: Nirgal, happy to hear you appreciate so much the roadmaps!
): http://qt.exploratorium.edu/mars/opportuni...FSP1214L0M1.JPG
PS: Nirgal, happy to hear you appreciate so much the roadmaps!
updated (hoping new progress soon!!!)
That hazcam image is a bit worrisome, the sand dose seem a bit looser. That is to be expected, those tall ripples to the south affect the wind velocity gradient and therefore the particle size distribution at the surface.
I think we'll be OK, though, as long as we move slowly and test the ground before moving. I havce faith in our drivers.
HEY, SUITS AT JPL: give those folks a raise. Spotlight them on the MER website.
--Bill
I think we'll be OK, though, as long as we move slowly and test the ground before moving. I havce faith in our drivers.
HEY, SUITS AT JPL: give those folks a raise. Spotlight them on the MER website.
--Bill
QUOTE (dilo @ Oct 4 2005, 10:24 PM)
hem... I am a little bit worried from last hazcam images (see left wheel in particular ):
http://qt.exploratorium.edu/mars/opportuni...FSP1214L0M1.JPG
): http://qt.exploratorium.edu/mars/opportuni...FSP1214L0M1.JPG
This one looks like they can probably just power through it. If they're not slipping/digging but are just sinking a little they should be okay.
Some of the largish dunes that surround Erebus look kind of scary though. I question if they'll be able to navigate through them without taking a huge detour.
Don't think it's dangerous - the road ahead is with progessively less sand as the ripple becomes lower, so Oppy will be on bedrock in the next meter or so...
QUOTE (dilo @ Oct 5 2005, 12:24 AM)
hem... I am a little bit worried from last hazcam images (see left wheel in particular ):
):From Steve's last status update:
QUOTE
This is treacherous stuff we're driving through, as a look at the Sol 603 Hazcams will show. But we've got our driving safeguards on, and Opportunity is able now to sense when her wheels are slipping and stop moving before we get into another Purgatory-like predicament. It's a good thing.
The rear wheels are still on the surface -- its only the front left wheel thas dug in a bit, I think they could just reverse out.
I too believe that the correct strategy is to simply put the reverse; a 1 or 2m drive backwards with slip protection off, similar to the drives while at Purgatory Dune.
When I saw sol 601 images, I though they would execute a small zig-zag NW then SW to overcome that dune.
Plans for future drives? Imho, drive due W or maybe WSW across the ripples until reaching the next set of high dunes. BTW, have you already thought about a name for them, Bill? May I propose "Elephant Dunes"?
When I saw sol 601 images, I though they would execute a small zig-zag NW then SW to overcome that dune.
Plans for future drives? Imho, drive due W or maybe WSW across the ripples until reaching the next set of high dunes. BTW, have you already thought about a name for them, Bill? May I propose "Elephant Dunes"?
From the latest Steve update
http://athena1.cornell.edu/news/mubss/
I like that!
http://athena1.cornell.edu/news/mubss/
QUOTE
But above all we want to get past Erebus quickly and continue on our way. Victoria crater beckons, and whether we can reach it or not, we have to try.
I like that!
QUOTE (Bill Harris @ Oct 4 2005, 02:15 AM)
This is a image that relates (as far as I can tell) the on-ground features seen by Oppy to the MOC orbital view of Erebus. The ground image is a panorama from two Pancam images taken on Sol 601, stretched 3x, and the MOC image is R1500822.
Interesting dune/ripple structure ahead.
--Bill
Interesting dune/ripple structure ahead.
--Bill
Bill,
I did a similar exercise measuring the distances to selected ground features with MER Parallax Calculator and the final results, when matching ground vs. orbital images, are about the same as yours.
Imho, the SW path (crossing waypoints 2 and 3) is blocked by dunes while the WSW path until the outcrop between wpts 7 and 8 is feasible. At that point, there may be a "corridor" between the big dunes to the left (point 5) and right (behind 8, in the same line-of-sight), or the rover should try another route driving back north. But it is too early to know.
QUOTE (dot.dk @ Oct 5 2005, 05:05 AM)
As I have said previously that after a while time, the science around the Etched outcrop will become already well known and will change the plans to get sooner to Victoria crater.
Hope, from now to ahead, there will be full of emotions every time the Oppy flips over the ripples. I am sure the drivers have already know about the Oppy's limitations capability of 6x6 off-road.
Rodolfo
For the immediate future, the next goal will be the wide bedrock surface marked 7-8 on Tesheiner's feature map in Post#764. From this point, the decision can be made to go north then west around the "Elephant Dune" to get to Mogollon (most likely route) or head south between dunes/ripples into the interior of Erebus (Point 5 on the feature map). Less likely, but possible.
Elephant Dune works for me. Let's put it out for consideration.
I was surprised, too, when Oppy turned into that ripple. I expected her to do a NW-SW zig-zag around the ripple. I suspect that this was a maneuver to "test the water" and check the driving surface of these ripples with a "safe-looking" ripple.
--Bill
Elephant Dune works for me. Let's put it out for consideration.
I was surprised, too, when Oppy turned into that ripple. I expected her to do a NW-SW zig-zag around the ripple. I suspect that this was a maneuver to "test the water" and check the driving surface of these ripples with a "safe-looking" ripple.
--Bill
[quote]
. But above all we want to get past Erebus quickly and continue on our way. Victoria crater beckons, and whether we can reach it or not, we have to try.
--Bill
[/quote]
Yeeehaaaa !!!!
Steve couldn't have expressed my feelings & opinion more exactly than with this
latest sentence of his
Up to now I've always been a little afraid that Victoria could be "dropped"
as a realistic goal by the planners.
With the end of the rover lifetime, having
already collected many gigabytes of detailed science data, having returned many times more science data than initially expected ... wouldn't now be the time for a new driving approach ? (by this I do *not* mean over-risky and overly fast driving (for example, IMO it was a good thing to spend that many weeks
analysing the "purgatory event" which finally lead to the development of a new, safe inter-dune driving technique )
But I do think we could reverse the priorities from "collect as many data as possible" and "drive as many meters as neccessary" to "drive as much as possible in order to reach the new goal Victoria" and "collect data only if its absolutely new and unexpected findings on the way"
So after Erebus: almost every day would be a driving day and we could safely make some 20-30 meters per day which would give a realistic chance to reach Victoria !
It's a trade off: the risk of "losing", say 50 sols (the driving-only sols) of detailed science of the already relatively-well-known objects against the huge *chance* of discovering something entirely new at the deep exposed Layers of Victoria.
Even if this chance is only 10% or less it would still be worth the small risk, IMHO.
Let me again cite Steve:
[qoute]
... and whether we can reach it or not, we have to try.
[/quote]
That's the Spirit of real exploration... and that's how science has always advanced : with the courage to try something new, to try to push the frontiers
Again: Thank you Steve & JPL-Team for making this dream of exploring
new worlds come true
. But above all we want to get past Erebus quickly and continue on our way. Victoria crater beckons, and whether we can reach it or not, we have to try.
--Bill
[/quote]
Yeeehaaaa !!!!
Steve couldn't have expressed my feelings & opinion more exactly than with this
latest sentence of his
Up to now I've always been a little afraid that Victoria could be "dropped"
as a realistic goal by the planners.
With the end of the rover lifetime, having
already collected many gigabytes of detailed science data, having returned many times more science data than initially expected ... wouldn't now be the time for a new driving approach ? (by this I do *not* mean over-risky and overly fast driving (for example, IMO it was a good thing to spend that many weeks
analysing the "purgatory event" which finally lead to the development of a new, safe inter-dune driving technique )
But I do think we could reverse the priorities from "collect as many data as possible" and "drive as many meters as neccessary" to "drive as much as possible in order to reach the new goal Victoria" and "collect data only if its absolutely new and unexpected findings on the way"
So after Erebus: almost every day would be a driving day and we could safely make some 20-30 meters per day which would give a realistic chance to reach Victoria !
It's a trade off: the risk of "losing", say 50 sols (the driving-only sols) of detailed science of the already relatively-well-known objects against the huge *chance* of discovering something entirely new at the deep exposed Layers of Victoria.
Even if this chance is only 10% or less it would still be worth the small risk, IMHO.
Let me again cite Steve:
[qoute]
... and whether we can reach it or not, we have to try.
[/quote]
That's the Spirit of real exploration... and that's how science has always advanced : with the courage to try something new, to try to push the frontiers
Again: Thank you Steve & JPL-Team for making this dream of exploring
new worlds come true
Exactly, Nirgal. Victoria is a very important goal (and, possibly, finale) of this mission, but Erebus is too important to pass by: it is important that we maximize the data collected by the mission. Studying the dark unit we see is critical since it is the first major change in facies that we have encountered.
From a geological (petrology and stratigraphy) standpoint, Erebus is an important point along this traverse. We understand the geology at Eagle Crater and at Endurance crater, and Erebus will be necessary to tie the geology at Victoria to the initial sites. Oppy will need to pass by Erebus anyway, so we might as well optimize the data collection.
--Bill
From a geological (petrology and stratigraphy) standpoint, Erebus is an important point along this traverse. We understand the geology at Eagle Crater and at Endurance crater, and Erebus will be necessary to tie the geology at Victoria to the initial sites. Oppy will need to pass by Erebus anyway, so we might as well optimize the data collection.
--Bill
QUOTE (Tesheiner @ Oct 5 2005, 02:03 PM)
Bill,
I did a similar exercise measuring the distances to selected ground features with MER Parallax Calculator and the final results, when matching ground vs. orbital images, are about the same as yours.
I did a similar exercise measuring the distances to selected ground features with MER Parallax Calculator and the final results, when matching ground vs. orbital images, are about the same as yours.
Great work!
By the way, I do not see any Opportunity movement for Sol604... si she going back as someone predicted in order to avoid "another Purgatory-like predicament"?
Thanks.
And asking to our "friend" MER Pancam Data Tracking Web Interface about planned action on sols 604 and 605, we see interesting things:
Sol 604: No driving related activities.
Sol 605: Driving day! Similar strategy as when trying to escape Purgatory Dune, as I thought. A set of "micro-drives" (16 steps) followed by hazcam and pancam shots after each step. Look by yourselves the planned sequences:
And asking to our "friend" MER Pancam Data Tracking Web Interface about planned action on sols 604 and 605, we see interesting things:
Sol 604: No driving related activities.
Sol 605: Driving day! Similar strategy as when trying to escape Purgatory Dune, as I thought. A set of "micro-drives" (16 steps) followed by hazcam and pancam shots after each step. Look by yourselves the planned sequences:
QUOTE
605 p1214.05 2 0 0 2 0 4 front_haz_ultimate_4bpp_pri15
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1254.01 2 0 0 2 0 4 front_haz_3bpp_pri41
605 p1312.06 2 0 0 2 0 4 rear_haz_ultimate_2_bpp_pri15
605 p1314.00 2 0 0 2 0 4 rear_haz_ultimate_4bpp_pri15
605 p1314.00 2 0 0 2 0 4 rear_haz_ultimate_4bpp_pri15
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1832.00 2 0 0 2 0 4 navcam_1x1_site_frame_1_bpp
605 p2391.06 4 0 0 4 2 10 pancam_two_tracks_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2600.07 2 2 0 0 2 6 pancam_tau
605 p2600.07 2 2 0 0 2 6 pancam_tau
605 p2627.01 36 0 0 0 0 36 pancam_sky_radiance_thumbs_L457R247
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1244.03 2 2 0 0 0 4 front_hazcam_wheel_sub_256x256_4_bpp_pri_19
605 p1254.01 2 0 0 2 0 4 front_haz_3bpp_pri41
605 p1312.06 2 0 0 2 0 4 rear_haz_ultimate_2_bpp_pri15
605 p1314.00 2 0 0 2 0 4 rear_haz_ultimate_4bpp_pri15
605 p1314.00 2 0 0 2 0 4 rear_haz_ultimate_4bpp_pri15
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1344.04 3 3 0 0 0 6 rear_hazcam_sub_LRREYES_256x256_4bpp_pri19
605 p1832.00 2 0 0 2 0 4 navcam_1x1_site_frame_1_bpp
605 p2391.06 4 0 0 4 2 10 pancam_two_tracks_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2392.06 4 0 0 4 2 10 pancam_mid_drive_two_trenches_L7R1
605 p2600.07 2 2 0 0 2 6 pancam_tau
605 p2600.07 2 2 0 0 2 6 pancam_tau
605 p2627.01 36 0 0 0 0 36 pancam_sky_radiance_thumbs_L457R247
QUOTE (Nirgal @ Oct 5 2005, 03:39 PM)
(for example, IMO it was a good thing to spend that many weeks
analysing the "purgatory event" which finally lead to the development of a new, safe inter-dune driving technique )
analysing the "purgatory event" which finally lead to the development of a new, safe inter-dune driving technique )
I agree entirely. In hindsight Purgatory was a blessing in disguise because Oppy got into enough trouble that it had to be taken seriously and resolved, but not so much that it couldn't be overcome.
I have more confidence about them going west around Erebus now because they won't drive into anything they aren't sure they can back out of. It would have been a much bigger concern (for me at least) if they had decided to go straight across the crater.
They backed Oppy out of the dune.
http://qt.exploratorium.edu/mars/opportuni...GMP1832R0M1.JPG
Was trying to drive straight over the dune an experiment meant to shut up the back seat rover drivers?
http://qt.exploratorium.edu/mars/opportuni...GMP1832R0M1.JPG
Was trying to drive straight over the dune an experiment meant to shut up the back seat rover drivers?
I think that this was intentional, a way of testing the driving surface, as well as the intelligence (comon sense?) of Oppy. Look a the Sol 603 NavCams, and you'll note a maneuver to drive into the ripple.
My 2c.
SteveS, mention this in the next update... we're curious.
--Bill
My 2c.
SteveS, mention this in the next update... we're curious.
--Bill
Good to see Oppy out of that. Looking at the subframe hazcams, there wasn't really any slip in backing out.
It might have been an experiment to check that the slip protection works.
I wish they would plan longer zigzagging drivers now, with the knowledge that Oppy will stop herself in the case she is about to get into trouble.
QUOTE (alan @ Oct 6 2005, 11:28 PM)
Was trying to drive straight over the dune an experiment meant to shut up the back seat rover drivers?
It might have been an experiment to check that the slip protection works.
I wish they would plan longer zigzagging drivers now, with the knowledge that Oppy will stop herself in the case she is about to get into trouble.
QUOTE (alan @ Oct 6 2005, 11:28 PM)
They backed Oppy out of the dune.
http://qt.exploratorium.edu/mars/opportuni...GMP1832R0M1.JPG
Was trying to drive straight over the dune an experiment meant to shut up the back seat rover drivers?
http://qt.exploratorium.edu/mars/opportuni...GMP1832R0M1.JPG
Was trying to drive straight over the dune an experiment meant to shut up the back seat rover drivers?
A Purgatory Déjà Vu?
Did Oppy stop because of slip detection or was it just the end of the planned drive?
I certainly don't see any signs of slippage from the tracks, and a wheel that's 1/3 buried can still be making good contact and have driving grip.
I certainly don't see any signs of slippage from the tracks, and a wheel that's 1/3 buried can still be making good contact and have driving grip.
QUOTE (Joffan @ Oct 7 2005, 04:52 PM)
Did Oppy stop because of slip detection or was it just the end of the planned drive?
I certainly don't see any signs of slippage from the tracks, and a wheel that's 1/3 buried can still be making good contact and have driving grip.
I certainly don't see any signs of slippage from the tracks, and a wheel that's 1/3 buried can still be making good contact and have driving grip.
Look at the rear hazcam
e.g. Sol 603 Rear Hazcam
Looks like slipping in the left (right of picture) track like we saw at Purgatory.
http://qt.exploratorium.edu/mars/opportuni...GMP1214R0M1.JPG
Judging from this hazcam image, the rover tried to climb the steepest part of the dune, they could probably turn to the right a bit and drive over the shallower part.
Judging from this hazcam image, the rover tried to climb the steepest part of the dune, they could probably turn to the right a bit and drive over the shallower part.
Could have kept going, but that sand (dust?) is soft
QUOTE (Sunspot @ Oct 7 2005, 04:39 AM)
http://qt.exploratorium.edu/mars/opportuni...GMP1214R0M1.JPG
Judging from this hazcam image, the rover tried to climb the steepest part of the dune, they could probably turn to the right a bit and drive over the shallower part.
Judging from this hazcam image, the rover tried to climb the steepest part of the dune, they could probably turn to the right a bit and drive over the shallower part.
I agree it.
Rodolfo
QUOTE (abalone @ Oct 7 2005, 01:56 PM)
Could have kept going, but that sand (dust?) is soft
Actually, I'd say it looks firmer (shallower?) than Purgatory...
My mental image of the sand is that it is fluffy and compactable, much like newfallen snow. I would love to see cross sections of some shelby tube samples of that material. I imagine that once we get to the higher relief parts of this ripple field we will eventally encounter a fresh slump and we'll be able to examine an undisturbed cross section.
--Bill
--Bill
Based on Sol608 imagery, Opyy covered almost 11m in West direction (updated route map will arrive soon)
Not so soon (Forum connectivity issues ):
):
I wonder why the Spirit traverse maps are updated regularly, while the Opportunity maps are still at sol 566
http://marsrovers.jpl.nasa.gov/mission/traverse_maps.html
http://marsrovers.jpl.nasa.gov/mission/traverse_maps.html
http://www.spacedaily.com/news/mars-mers-05zzzzh.html
Interesting update! They did plan for a 45 meter drive, but Oppy stopped when slippage exceeded 40%. 45 meter in this sort of terrain seems pretty impressive to me.
Note: we're in restricted (low budget) mode again.
Interesting update! They did plan for a 45 meter drive, but Oppy stopped when slippage exceeded 40%. 45 meter in this sort of terrain seems pretty impressive to me.
Note: we're in restricted (low budget) mode again.
QUOTE (general @ Oct 12 2005, 04:01 AM)
I wonder why the Spirit traverse maps are updated regularly, while the Opportunity maps are still at sol 566
They've probably switched to using Dilo's maps
Opportunity traverse maps update (to sol 591)
http://marsrovers.jpl.nasa.gov/mission/tm-...nity/index.html
(to sol 591) http://marsrovers.jpl.nasa.gov/mission/tm-...nity/index.html
QUOTE (general @ Oct 13 2005, 05:42 PM)
Opportunity traverse maps update (to sol 591)
http://marsrovers.jpl.nasa.gov/mission/tm-...nity/index.html
(to sol 591) http://marsrovers.jpl.nasa.gov/mission/tm-...nity/index.html
Gosh, how poor is that when compared to Dilo's maps!
So Opportunity driving today? Guess these from yesterday then, wonderful rocks I like one of the first kind below in my garden!
Seens to be another bluberry on stalks rock.
http://qt.exploratorium.edu/mars/opportuni...JLP2545L6M1.JPG
Sediments and a LOT of blueberries.
http://qt.exploratorium.edu/mars/opportuni...JLP2543L7M1.JPG
Seens to be another bluberry on stalks rock.
http://qt.exploratorium.edu/mars/opportuni...JLP2545L6M1.JPG
Sediments and a LOT of blueberries.
http://qt.exploratorium.edu/mars/opportuni...JLP2543L7M1.JPG
Sorry for absence in the last days (I had some HW troubles...). Seems someone missed my maps .
Oppy is now heading NE, maybe to avoid the big dunes...
.Oppy is now heading NE, maybe to avoid the big dunes...
Below picture is a good avenue to approach to rim and there there is outcrop as way to go along the rim.
Rodolfo
Rodolfo
Dilo: Your route map updates have certainly been missed by more than one of us. I'm glad to hear that you have apparently conquered your HW problems and are back.
I really wanted to see an updated map today, and there it was, as if delivered by an angel. Welcome back.
I really wanted to see an updated map today, and there it was, as if delivered by an angel. Welcome back.
Welcome back Dilo.
> Seems someone missed my maps.
I think everybody missed you maps! Thanks for the update.
While you were offline I was updating my own route map "on the blind". I checked it against your last update and my guesses for sols 615 and 616 almost fit with yours. Just a very minor issue wrt 616 position: I think the point you indicate on the top right corner picture should be a little bit westward.
Click to view attachment
> Seems someone missed my maps.
I think everybody missed you maps! Thanks for the update.
While you were offline I was updating my own route map "on the blind". I checked it against your last update and my guesses for sols 615 and 616 almost fit with yours. Just a very minor issue wrt 616 position: I think the point you indicate on the top right corner picture should be a little bit westward.
Click to view attachment
RNeuhaus, I think that going South from the Sol 616 point willbe a dead end; the sand increases to the South and we'll have to turn back after a few meters travel. There will be better luck driving into or looking into Erebus atthe end of The Four Lane bedrock road.
Attached is a travel map showing the route (actual and speculated) for the next few Sols.
--Bill
Attached is a travel map showing the route (actual and speculated) for the next few Sols.
--Bill
QUOTE (Bill Harris @ Oct 19 2005, 05:39 AM)
RNeuhaus, I think that going South from the Sol 616 point willbe a dead end; the sand increases to the South and we'll have to turn back after a few meters travel.
Yes, the height and amount of sand increases to the South but I see other etched outcrop along the rim on the south way. It is an alternative that might be more interesting than the other by west way which would be easier and safer.
QUOTE (Bill Harris @ Oct 19 2005, 05:39 AM)
There will be better luck driving into or looking into Erebus at the end of The Four Lane bedrock road.
Where is the Four Lane bedrock road?
Rodolfo
"The Four Lane" is my informal name for the next large expanse of bedrock roadway; I've been watching it for some time. It looks like a double-line of bedrock near the horizon and impressed me as looking like a four-lane roadway. In my annotated MOC image above, it is the area under the curved blue dashed line.
--Bill
--Bill
My two cents that after today's drive, the rover is AT the "Four Lane".
The images are reported as downlinked, but its too early to find them either at the Exploratorium or MER websites.
The images are reported as downlinked, but its too early to find them either at the Exploratorium or MER websites.
Great! I'll be looking forward to seeing them posted at the Exploratorium.
As I noted in Dark Dunes of Erebus , there appears to be an exposure of a new rock type at the South end of the FourLane that should prove interesting. With the expanse of clean bedrock in the area there may also be a way into Erebus close by.
--Bill
As I noted in Dark Dunes of Erebus , there appears to be an exposure of a new rock type at the South end of the FourLane that should prove interesting. With the expanse of clean bedrock in the area there may also be a way into Erebus close by.
--Bill
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