Some Statistics for Spirit & Oppy, As they continue their journey on Mars Options

[dilo]

Update...

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[brellis]

At 10m/sol, Oppy would only need about 2 million sols to travel the entire circumference, eh?

Edit: about 5,000 earth years. What're the odds? Gotta check the Vegas line on that!

[climber]

At 10m/sol, Oppy would only need about 2 million sols to travel the entire circumference, eh?

You can take 10% out of this
Global mean as of April 27th 2011 is 11,002 m/ sol (and 2mm a sol x 2 million is to be taken in account )
Her best was back on Sol 438 where the mean was then 11,929m/ Sol.
By the way she already drove 3 more kms since Victoria than she drove from Eagle to Victoria (15706m vs 12678m)

[brellis]

Darn metric system! thanks for the correction

[dilo]

Late Update...

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[Tesheiner]

I like this latest update, specially the average m/sol figure.
I have one suggestion / request. This figure, as you say, is an average of two weeks. Due to the "restricted sols" there are periods when they drive once a day and others when that is done once every other day. So, assuming a single and only goal of "driving, driving, driving", this average figure would go up and down depending on the period it is measuring: restricted sols or not. My suggestion is to have a figure based on a e.g. monthly period; I think (but didn't do the math) it would be much more stable.

[fredk]

I'd add one comment about the smooth (spline?) curves interpolating the points. In some cases, the interpolations overshoot and you get what look like too extreme minima or maxima (pics/sol shows this best). I'd generally vote for straight line segments connecting points or no lines at all, just to avoid any biases like that.

Apart from that, I love these monthly updates - thanks for all the work, Dilo!

[dilo]

I like this latest update, specially the average m/sol figure.
I have one suggestion / request. This figure, as you say, is an average of two weeks. Due to the "restricted sols" there are periods when they drive once a day and others when that is done once every other day. So, assuming a single and only goal of "driving, driving, driving", this average figure would go up and down depending on the period it is measuring: restricted sols or not. My suggestion is to have a figure based on a e.g. monthly period; I think (but didn't do the math) it would be much more stable.

Thanks Edoardo for suggestion, when I started this activity the two-weeks baseline seemed the best trade-off but I noticed the up-down trend too; now I am seriously considering the possibility to add a monthly baseline...

[SteveM]

I like this latest update, specially the average m/sol figure.
I have one suggestion / request. This figure, as you say, is an average of two weeks. Due to the "restricted sols" there are periods when they drive once a day and others when that is done once every other day. So, assuming a single and only goal of "driving, driving, driving", this average figure would go up and down depending on the period it is measuring: restricted sols or not. My suggestion is to have a figure based on a e.g. monthly period; I think (but didn't do the math) it would be much more stable.

To refine Edoardo's rough estimate, the exact period you want is 36.378 sols, which equals 37.378 days. To suppress the effect of restricted sols, a 36 day average should do nicely.

[dilo]

As element for evaluation, herebelow the updated odometry with 3 different baselines (10, 20 and 37 days):

Indeed, the last baseline curve seems by far more regular and this could be due to "restricted sols effect" suppression, as suggested by Eduardo and Steve.
This is the Oppy total odometry with 36 sols average distance:

I will implement the new baseline, instead of the 15 days one, for speed curve calculation in the next updates.
Thanks for support!

[dilo]

I think impressive odometry in last 2 weeks deserves a special update:

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[Tesheiner]

So, if I'm reading correctly this and the previous graph, these last weeks have the highest average m/sol of the whole mission, right?

[pospa]

Maybe just coincidence, but looking at milestones in Tesheiner's maps Oppy keeps quite stable traverse speed of 1 km / 20 sols.

sol 2552 - 27 km
sol 2572 - 28 km
sol 2592 - 29 km

[dilo]

So, if I'm reading correctly this and the previous graph, these last weeks have the highest average m/sol of the whole mission, right?

Edoardo, if you look at 2nd plot of t my previous post, a similar avg speed was reached only in the "glorious week" from Sol407 to 414, when Oppy covered almost 1 km, establishing the absolute record of 220 m in a Sol with 64 m/sol peak average on a 36 Sol/day base.
Is great to see again similar average speed after 6 years and additional 21km covered!

[climber]

Yep! Over 52m/Sol since leaving Santa Maria (49 Sols).
Less than 4 kms to go, right?