[X] My Assistant

[djellison]

Took me a while to find this again :0 http://www.copperas.com/merpx/ courtesy of JM -and also in the 'bounce rock in colour' thread - discussion of calculating drive distance based on track width in navcam views:D

Anyhoo - was thinking "wow - thats a lot of metres over the past couple of weeks -

So - using this - http://qt.exploratorium.edu/mars/spirit/na...00P1755R0M1.JPG

Anyhoo - I make it roughly 200 metres +/- 20m to the turning point we can see at the base of the spur over there. I assume that's sol 328 as this image

http://marsrovers.jpl.nasa.gov/gallery/all...0P1755L0M1.HTML

is 327 - and ranging shows a distance of 140 metres +/- 11metres
Thus - a drive distance of 60 metres roughly

Some pancam images back toward Clovis would be good to use with JM's parallax calculator
Doug

[alan]

I tried that parallax calculator on the pass ahead using a couple of pancam images, ~250 meters away! No wonder Spirit doesn't appear to be getting much closer.