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Southward from San Antonio to the Next Waypoint
Zeke4ther
post Apr 2 2010, 03:38 AM
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It seems about the right time to start a new thread as we have now turned East to Endeavour.
Hope no one minds...


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ElkGroveDan
post Apr 5 2010, 02:47 PM
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As I recall the wheel current issues were somewhat alleviated by reversing driving direction now and then. I wonder if they have considered a pirouette kind of driving routine for long distances. The rover would drive 40 meters or so, stop and turn 180 degrees and resume driving in the other direction. While that might be hazardous around purgatoids, out on the flat plains it might make sense.


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fredk
post Apr 5 2010, 03:50 PM
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QUOTE (ElkGroveDan @ Apr 5 2010, 03:47 PM) *
As I recall the wheel current issues were somewhat alleviated by reversing driving direction now and then.
I think rest was found to be more important than reversing direction. Check out this post from Paolo.

Paolo's posts are a goldmine of information. In this one he mentions that RF currents drop substantially on bedrock. Perhaps we can expect some drop in current on flat tarmac compared with the current ripples? I'm thinking along the lines of Spirit's wheel resistance in Troy that was reduced when they did the swimming stroke motions? Of course Spirit's case was much more severe. But perhaps a reason to hope for slightly longer drives on the tarmac.
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Posts in this topic
- Zeke4ther   Southward from San Antonio to the Next Waypoint   Apr 2 2010, 03:38 AM
- - Astro0   OT - but hooray! Oppy reaches the Sol 2200 mi...   Apr 2 2010, 09:09 AM
- - Tesheiner   It's ok to move to a new thread but it should ...   Apr 2 2010, 05:03 PM
- - ElkGroveDan   Based on James' latest ripple hazard map, we n...   Apr 2 2010, 06:09 PM
|- - jamescanvin   Yeah, I don't think we'll see anything muc...   Apr 2 2010, 07:07 PM
- - BrianL   I could be wrong, but I don't see them going b...   Apr 2 2010, 06:36 PM
- - marsophile   Does the lack of ripples in the green region imply...   Apr 2 2010, 08:34 PM
- - ElkGroveDan   Not necessarily. As I recall Oppy's first cle...   Apr 2 2010, 08:55 PM
- - Bobby   I think this new start to the drive from Twin Crat...   Apr 2 2010, 08:57 PM
|- - Stu   QUOTE (Bobby @ Apr 2 2010, 09:57 PM) I do...   Apr 2 2010, 09:20 PM
- - nprev   It is indeed kind of tempting to think that we...   Apr 2 2010, 09:10 PM
- - fredk   I think what's happened at San Antonio/Twins i...   Apr 2 2010, 09:28 PM
- - marsophile   Concepción was interesting enough that we could ha...   Apr 2 2010, 09:40 PM
|- - climber   QUOTE (marsophile @ Apr 2 2010, 11:40 PM)...   Apr 2 2010, 09:46 PM
- - Tesheiner   QUOTE (marsophile @ Apr 2 2010, 10:34 PM)...   Apr 2 2010, 11:16 PM
- - Explorer1   So even if we find the ideal terrain, like at the ...   Apr 2 2010, 11:33 PM
|- - Tesheiner   QUOTE (Explorer1 @ Apr 3 2010, 01:33 AM) ...   Apr 3 2010, 09:29 AM
- - fredk   Heading south next drive according to Maxwell.   Apr 3 2010, 03:21 AM
|- - Tesheiner   QUOTE (fredk @ Apr 3 2010, 05:21 AM) Head...   Apr 4 2010, 08:48 PM
- - brellis   thx for the pointer to Scott's blog   Apr 3 2010, 12:42 PM
- - climber   There's something I'm not sure to understa...   Apr 3 2010, 07:54 PM
|- - SteveM   QUOTE (climber @ Apr 3 2010, 02:54 PM) Th...   Apr 3 2010, 09:10 PM
- - Explorer1   I already have it bookmarked, chiefly to wait for ...   Apr 3 2010, 07:55 PM
- - climber   Thanks Steve, even if this doesn't answer my q...   Apr 3 2010, 09:23 PM
- - Floyd   What AEGIS catches on a drive-by is the odd rock t...   Apr 3 2010, 10:17 PM
- - Bill Harris   Agreed. I look at the AEGIS subroutine as a logic...   Apr 4 2010, 01:51 AM
|- - ElkGroveDan   QUOTE (Bill Harris @ Apr 3 2010, 05:51 PM...   Apr 4 2010, 02:53 AM
- - CosmicRocker   QUOTE (Tesheiner @ Apr 2 2010, 06:16 PM) ...   Apr 4 2010, 06:11 AM
- - climber   Looking it at a larger scale, it may be possible t...   Apr 4 2010, 10:41 AM
- - Bill Harris   The ripples are changing because of an increase in...   Apr 4 2010, 03:05 PM
- - climber   Thank you Bill. I was talking of a venturi effect ...   Apr 4 2010, 03:41 PM
- - eoincampbell   Should we then, expect a cleaning event on the bra...   Apr 4 2010, 05:42 PM
- - fredk   It's worth keeping in mind that the upcoming d...   Apr 4 2010, 05:58 PM
- - nprev   Whups. Haven't had that happen for awhile, rig...   Apr 4 2010, 09:19 PM
- - Stu   Word has it Oppy refused to move because the drive...   Apr 4 2010, 09:24 PM
|- - SFJCody   Please don't be a dead wheel, please don't...   Apr 5 2010, 09:06 AM
|- - Hungry4info   Re: SFJCody' Ahh fudge there went my whole day...   Apr 5 2010, 09:39 AM
|- - BrianL   QUOTE (SFJCody @ Apr 5 2010, 04:06 AM) P...   Apr 5 2010, 02:21 PM
- - Sunspot   And this isnt a very interesting place to spend th...   Apr 5 2010, 10:53 AM
- - PaulM   I asked Scott Maxwell the following question on hi...   Apr 5 2010, 11:02 AM
|- - Tesheiner   > So, for now, you should figure that the flat ...   Apr 5 2010, 01:49 PM
|- - MoreInput   QUOTE (Tesheiner @ Apr 5 2010, 02:49 PM) ...   Apr 11 2010, 06:04 PM
- - Bill Harris   QUOTE the upcoming drop down to Endeavour has a sl...   Apr 5 2010, 11:04 AM
- - ElkGroveDan   As I recall the wheel current issues were somewhat...   Apr 5 2010, 02:47 PM
|- - fredk   QUOTE (ElkGroveDan @ Apr 5 2010, 03:47 PM...   Apr 5 2010, 03:50 PM
|- - Tesheiner   QUOTE (ElkGroveDan @ Apr 5 2010, 04:47 PM...   Apr 5 2010, 04:02 PM
- - climber   RF is durty but seems been working ok:   Apr 5 2010, 08:01 PM
- - fredk   That image is from the previous drive. On 2202 we...   Apr 5 2010, 08:29 PM
- - Tesheiner   Climber, that's an old picture from about a we...   Apr 5 2010, 08:31 PM
- - climber   Sorry, 1 m drive, then abort, corresponded too muc...   Apr 5 2010, 08:35 PM
- - Tesheiner   FWIW, the next drive is on sol 2204 i.e. tomorrow.   Apr 5 2010, 09:05 PM
- - JayB   looks like we're ok @marsroverdriver Oppy dro...   Apr 6 2010, 12:51 AM
- - Tesheiner   Still waiting for the latest pictures to confirm i...   Apr 7 2010, 05:50 AM
|- - fredk   QUOTE (Tesheiner @ Apr 7 2010, 06:50 AM) ...   Apr 8 2010, 04:07 AM
- - nprev   Hmm. Well, if this is true, then at least the faul...   Apr 7 2010, 05:58 AM
|- - ElkGroveDan   QUOTE (nprev @ Apr 6 2010, 10:58 PM) .......   Apr 8 2010, 03:23 AM
- - BrianL   RE: Southward from San Antonio to the Next Waypoint   Apr 8 2010, 01:01 AM
- - Explorer1   Woops! That would be more funny than annoying ...   Apr 8 2010, 04:00 AM
- - Tesheiner   Yup. I'm missing my daily fix. While waiting ...   Apr 8 2010, 03:58 PM
- - Gonzz   Maybe this second 1m drive was due to manouvering ...   Apr 8 2010, 04:12 PM
- - Hungry4info   Sure hope you are wrong. If we have to spend a few...   Apr 8 2010, 05:20 PM
- - Gonzz   well... then maybe they want to take a close look ...   Apr 8 2010, 06:10 PM
|- - Geert   QUOTE (Gonzz @ Apr 9 2010, 01:10 AM) Gues...   Apr 9 2010, 12:07 AM
- - elakdawalla   Looking for something to do on Mars? Rove over th...   Apr 8 2010, 06:43 PM
|- - Nirgal   QUOTE (elakdawalla @ Apr 8 2010, 08:43 PM...   Apr 8 2010, 09:58 PM
- - nprev   Thanks, Geert. All is well.   Apr 9 2010, 12:24 AM
- - Tesheiner   Yep. The drive was successful and 50m were covered...   Apr 9 2010, 05:45 AM
- - climber   IIRC, Spirit RF died right after a sharp turn. May...   Apr 9 2010, 07:31 AM
|- - djellison   QUOTE (climber @ Apr 9 2010, 08:31 AM) ba...   Apr 9 2010, 08:02 AM
- - Sunspot   Its been offline for as long as 10 days before.   Apr 9 2010, 07:47 AM
- - climber   Yep, good point Doug!   Apr 9 2010, 10:55 AM
- - Tesheiner   Thread bump, althought there's not so much to ...   Apr 11 2010, 08:54 AM
- - briv1016   I was bored so I tried to eyeball the Navcam thumb...   Apr 11 2010, 10:01 AM
- - Tesheiner   I did the same thing (similar result) to obtain a ...   Apr 11 2010, 10:16 AM
- - alan   I noticed that the pancam drive direction images a...   Apr 11 2010, 03:18 PM
- - Phil Stooke   Yes, they just bypassed a clump of larger drifts. ...   Apr 11 2010, 04:14 PM
|- - ElkGroveDan   Soon worries about drifts and dunes will be ancien...   Apr 11 2010, 04:19 PM
|- - SFJCody   I'm pretty sure they're now closer to Ende...   Apr 11 2010, 05:55 PM
|- - BrianL   QUOTE (ElkGroveDan @ Apr 11 2010, 10:19 A...   Apr 11 2010, 07:09 PM
- - CosmicRocker   QUOTE (MoreInput @ Apr 11 2010, 12:04 PM)...   Apr 12 2010, 06:58 AM
|- - antoniseb   QUOTE (CosmicRocker @ Apr 12 2010, 01:58 ...   Apr 12 2010, 12:09 PM
- - Bill Harris   But don' forget the most important thing-- The...   Apr 12 2010, 04:17 PM
- - ElkGroveDan   From here the view of the jpeg artifacts is among ...   Apr 12 2010, 04:49 PM
- - Tesheiner   I think we are all seeing the effects of a missing...   Apr 12 2010, 05:28 PM
- - alan   All the signs littering the landscape reminds me o...   Apr 12 2010, 06:02 PM
- - fredk   The drought is over! Pics down up to 2208: h...   Apr 12 2010, 07:48 PM
- - Tesheiner   Ahh. Finally! This is a fhazcam from this la...   Apr 12 2010, 08:08 PM
- - fredk   A few clouds in the sky on sol 2206: Average of L...   Apr 12 2010, 08:55 PM
- - Hungry4info   Some interesting stuff from http://twitter.com/mar...   Apr 13 2010, 01:53 AM
- - nprev   Oh my God. They're letting Maxwell use her as ...   Apr 13 2010, 02:27 AM
- - BrianL   The one I like is, "Monday, if all goes well,...   Apr 13 2010, 03:20 AM
- - Stu   Bye bye San Antonio... you were a bit of a let-dow...   Apr 13 2010, 05:20 AM
- - Shaka   ...with a door in it.   Apr 13 2010, 05:24 AM
- - Stu   RE: Southward from San Antonio to the Next Waypoint   Apr 13 2010, 05:52 AM
- - Bill Harris   QUOTE Looking at GM, this does appear to be a good...   Apr 13 2010, 11:25 AM
- - Stu   Fascinating features on the ground in this view......   Apr 13 2010, 05:32 PM
- - Tesheiner   The images from yestersol 30m drive are finally do...   Apr 14 2010, 08:25 PM
- - Tman   Wow, that was seemingly a pretty flat passage alre...   Apr 14 2010, 08:40 PM
- - briv1016   Have we switched to twice-a-day downlinks for memo...   Apr 14 2010, 10:33 PM
- - djellison   Don't read too much into how and when images m...   Apr 14 2010, 10:50 PM
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