Some Statistics for Spirit & Oppy, As the journey continues on Mars Options

[centsworth_II]

...like a game of cat and tau's!

CAT as in Clean Array via Twister?

[NW71]

I thought that a stats post for those of you who love to see the rovers rove might go down well!

It struck me recently when Oppy passed the 23km mark on sol 2355 that she is rapidly heading up towards an average of 10m/sol. This got me thinking when was the last time (if ever) that this was the case.

By my reckoning (and please correct me if I'm wrong) the last time Oppy averaged 10m/sol was all the way back on sol 642 (Nov 13th, 2005) when she finished with 6,424 metres on the clock while she was looking at Antistasi.

Spirit last achieved this feat on sol 416 (Mar 5th, 2005) with 4,161 metres. At this point I believe she was on the top of the Columbia hills (Larry's Lookout) studying a site named Watchtower.

When you consider that even the NASA level 1 target (600m in 90 sols) did not require this workload, when you consider that Oppy is so far "out of warranty" she is now nearly five years older than when she could last claim this average, when you consider all the 1001 other amazing scientific tests she has carried out on top of this driving marathon... well, it makes you think doesn't it?!

Neil

[climber]

To add to your statements Neil, here are some more informations:

Higher Spirit mean per sol was on Sol 157 June, 12th 2004 roving 21.5m/Sol
Spirit best week ended on Sol 126 May, 7th 2004 roving 86.3m/Sol

Higher Oppy mean per sol was on Sol 438 April, 16th 2005 roving 11.9m/Sol
Oppy best week ended on Sol 415 March, 24th 2005 roving 118m/Sol

On September 14th Oppy mean per sol is 9.8m/Sol (going up) for the whole mission while it's 3.2m/Sol for Spirit (yes, going down)
Now, here is the complete .xls file I use if you want to play around with ...and even fill the gaps I'm too lazy to fill about the begining of the mission.

 Statistics_Spirit___Opportunity.xls ( 798.5K ) Number of downloads: 445

[dilo]

Update.
Encouraging trend of daily odometry and energy budget...

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[NW71]

On September 14th Oppy mean per sol is 9.8m/Sol (going up)

 Statistics_Spirit___Opportunity.xls ( 798.5K ) Number of downloads: 445

Climber - firstly, thank you for the chance to download the file with all the data on. Very kind of you.

Secondly, purely looking by eye at Teshiner's excellent route map we must be very, very close to the magical 10m/sol after sol 2381?

Neil

[SFJCody]

Sol 2400 is coming up. Looks to me like the distance travelled from 2300 to 2400 will be greater than for any other 100 sol period, even sol 400 to 500!

[NW71]

Looks to me like the distance travelled from 2300 to 2400 will be greater than for any other 100 sol period, even sol 400 to 500!

Admin - I hope this is ok on this thread. If not please move as you see fit.

As far as the above point goes I think that is right (Climber, Dilo please feel free to correct me)!

At a rough estimate, sol 400 to 500 saw 2,000m travelled.

Sol 2300 to 2395 appears to have covered 2,500m approximately.

Neil

[centsworth_II]

sol 437 odometry: 5225m

sol 339 odometry: 2076m (rounded)

total from sol 339 to sol 437: 3149m

[Phil Stooke]

3149 m - about the same distance that was driven on 18 February 1973 by Lunokhod 2! Of course a totally different situation, but it really points out the contrast between driving on the Moon and Mars.

Phil

[dilo]

update... impressive odometry increase in last days!

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[climber]

New milestones shortly.
Tomorrow, Spirit will be on Mars since 2500 (Earth) days. So, on Nov 17th both Rovers will reach the 5000 days mark sitting on Mars. I know days means nothing for the Rovers, but it sure means something for us. Also on December 3rd, the difference between days and sols since Spirit landing will reach 100.000 minutes.
The 5000 Sols mark will be reached the day after Oppy will celebrate her 7th years since landing, January 26th 2011.
Another one: as of Nov 2nd 2010, Oppy mean meters per sol is 10.3 (as shown on Dilo's graph above) and increasing very "fast" since she reached 10m by early October.

[brellis]

Tesheiner's Sol 2410 updated map shows a nice left turn. It's fun to be able to see a direction change during a drive sol -- Oppy's covering a lot of ground!

[dilo]

After Climber's observations on odometry speed increase, I decided to amplify the scale of such parameter, in order to better see it. Moreover, I decided to change plots formats in order to make them more readable, using the 2-weeks average system also for pics/day calculations; lines smoothing is also introduced. In all 3 plots, finally, you'll see only Oppotunity data and now the common timeframe is slightly above 1 martian year, in order to appreciate "seasonal" changes:

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[NW71]

One milestone that I think may have been missed occured on Oct 27th when Oppy drove (sol 2403).

This drive saw the combined odometry for Spirit and Oppy go over 20 miles.

I'll just say that again. 20 MILES!

Amazing. Awesome. Inspiring.

Neil

[dilo]

Monthly update.

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