One Martian Year!, And still going strong... Options

[dot.dk]

One martian year coming up in a few hours!

Nov. 19, 12:23:40 PM UTC if my math is correct

It's hard to describe what a fantastic achivement this is. So I'll just say:



Let's keep on roving!


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[alan]

I'm not sure if I totally agree dot.dk's calculation of the exact timing of the birthsol but the Birthday card is so damn fine that I need to beg his forgiveness for being a nit pick.

Sol 1 started on the Midnight before Spirit's landing.
There are 668.5921 Sols in a Martian tropical year.
It can be argued that the Marsiversary Sol should therefore start on Sol 669. *
However the the exact timing of the passing of 1 Martian year from the start of Sol 1 takes place at 14.21 local Martian time on Spirit Sol 669 due the 0.5921 fractional part.
Spirit landed at 14:26 local time (LST-A) on Sol-1 so the timing of 1 Martian year after that actually occurs at 4:47 on Sol 670.

* Using Earth Dates and Days.
Landing: January 4 2004 at 04:36 UTC.
Martian tropical year (in days) 686.9725.
Add the two and you get 03:56 on November 21 2005 for the actual event.

Happy Marsiversary Spirit

[jamescanvin]

Happy Marsiversary Spirit

What an amazing achevement! (to add to all the other amazing achevements ) Who would have thought it, I remember being amazed when the number 250 was mentioned at around sol 90! I would surely have laughed at anybody silly enough to talk about ONE WHOLE MARTIAN YEAR!

Bring on Oppys marsiversary in three weeks, then were off toward the heady realms of Sol 1000, I think I feel feint

Amazing days (sols),

James

[dilo]

I already posted image in another thread, but now I think this is the best place for Full-Res version.
This is my tribute to MER team, deepest gratitude to you!

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[jamescanvin]

I already posted image in another thread, but now I think this is the best place for Full-Res version.
This is my tribute to MER team, deepest gratitude to you!

Nice one dilo, nice to have a picture of Spirit on her birthsol.

Your "mission primary target" line on the graph confused me at first, I was thinking "surely there was no target of ~70m/day" that was just me being tired and stupid! But it made me think that another way of marking that graph would be a differently shaded box between 0-90 sols and 0 - 600m showing just how far outside the original mission requirment envelope we now are. It seems a shame on a graph with clumulate distance traveled not to show that we're not far off 10 times the mission requirement!

Nice work, cheers,

James

[dilo]

Good point, james!
I updated the plot, up to now Spirit lasted 7.5 times the primary mission life and covered a distance 9 times longer
I already highlighted in this short article.

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