Paolo, scusa/sorry for late reply but I was out for vacation...
QUOTE (RoverDriver @ Aug 12 2013, 04:49 PM)
...how do you know when the drive starts and when the drive ends? Is this data published?
I based my calculation on the data reported in Joe's
DriveLog, which is extracting data from NAIF web site (he can explain better!). I simply divide total distance by drive duration (2nd and 3dh columns) and this is an average within the drive; however, Joe reports also instant speed/elevation plots (see last column).
QUOTE (RoverDriver @ Aug 12 2013, 04:49 PM)
Secondly, I'm confused how you compute the average slope, how can it be negative? Is this the difference in elevation divided by the odometry?
Exact, due to moderate slopes I assumed this figure (which can be negative if elevation decreases); I am considering to report slope angle in the next plots... Obviously, elevation is referred to Bradbury station.