Moving Objects on Mars? What is causing
them to change location?
I've send an email
request to JPL on Monday May 28 2012, also to ask how far apart these
images were taken, so far no reply yet.
|Raw cut-outs from the original images
Click the image to enlarge, then
hold your Ctrl tab and scroll up with your mouse to blow it up
|Original Images | All
Click the image to go to the original
The phases of the mission include:
|Spirit Traverse Maps (all)
|There are no maps in this archive for Sol 1833,
1836 and 1843 but here are the
ones available from the Sol 1800 series
To be continued ..
location for the images of
Sol 1833 (image
1) is on Spirit
Traverse Map Sol 1845 (see
below, click to enlarge)
(You will find Sol
Traverse Map Sol 1858)
Update Archive for 2009
for the related Sol's:
1831-1837, February 26 - March 04, 2009:
Slight Progress on New Route
After initially making good progress on a new route
around "Home Plate" to the east, Spirit has been
struggling in local terrain on the northeast corner
of Home Plate. The route is difficult because the
direction is up-slope with a lot of loose, fine
material denying the five-driving-wheel rover good
After getting about 15 meters (49 feet) away from
Home Plate last week in just two drives, Spirit
made only 1.4 meters of progress on Sol 1831 (Feb.
26, 2009). The next two drive sols accomplished
only about 2 meters each. On Sol 1837 (March 4,
2009), Spirit had difficulty turning to face a new
direction, again because of the soft terrain.
The plan is to back downslope a little, turn and
attack the uphill grade a little more cross-slope.
As of Sol 1837 (March 4, 2009), Spirit's solar
array energy production is 282 watt-hours, atmospheric
opacity (tau) is 0.742, and the dust factor on the
solar array is 0.320. The rover is in good health
as it attempts to make its way around the northeast
corner of Home Plate. Spirit's total odometry is
7,602.42 meters (4.72 miles).
1838-1844, March 05-11, 2009: Change
to Western Route
Spirit continued to struggle in local terrain on
the northeast corner of "Home Plate." Several drive
attempts failed to make significant progress to
the east up the modest slopes consisting of loose
On Sol 1839 (March 6, 2009) a wheel diagnostic
test was performed to make sure a wheel stall seen
on an earlier sol was not an actuator problem. The
actuator is fine.
Drives on sols 1839, 1841 and 1843
8 and 10, 2009) all
reinforced the futility of attempting further drives
in this direction. Therefore, the project decided
to head Spirit in the other direction, west around
Home Plate. Spirit will begin to head that way in
the sols ahead.
As of Sol 1844 (March 11, 2009), Spirit's solar
array energy production is 281 watt-hours. Atmospheric
opacity (tau) is 0.755. The dust factor on the solar
array is 0.317, meaning that 31.7 percent of sunlight
hitting the solar array penetrates the layer of
accumulated dust on the array. The rover is in good
health as it begins to head west around Home Plate.
As of Sol 1843 (March
10, 2009), Spirit's total odometry
is 7,607.68 meters (4.73 miles).
1845-1851, March 12-18, 2009: Getting
Away from a Trouble Spot
Although Spirit will now attempt the western route
around the low plateau "Home Plate," it must first
safely move away from difficult terrain around the
northeast corner of Home Plate. One tactical concern
was a potato-size rock near the inside of the right
rear wheel that posed a risk of getting stuck inside
the wheel. Short maneuvers on Sol 1845 (March 12,
2009) and Sol 1847 (March 14, 2009) carefully moved
the rover away from this hazard. On Sol 1850 (March
17, 2009), Spirit moved about 5 meters (16 feet),
getting completely away from this trouble spot.
Spirit also conducted some panoramic camera (Pancam)
imaging and miniature thermal emission spectrometer
(Mini-TES) spectral measurements of various science
targets in the vicinity and performed an atmospheric
argon measurement with the alpha particle X-ray
Atmospheric conditions have
worsened lately over the Gusev site, although no
storm conditions have been reported.
As of Sol 1851 (March 18, 2009), Spirit's solar
array energy production has decreased to 230 watt-hours,
down 18 percent from a week earlier. Atmospheric
opacity (tau) has increased sharply, to 1.19. The
dust factor on the solar array is 0.313, meaning
that 31.7 percent of sunlight hitting the solar
array penetrates the layer of accumulated dust on
the array. The rover is in good health in spite
of dustier skies.
As of Sol 1850 (March 17, 2009), Spirit's total
odometry is 7,612.49 meters (4.73 miles).
1852-1858, March 19-25, 2009: Distance
Record for Five-Wheel Driving
Spirit is making good progress around Home Plate
to the west. After getting clear of troublesome
rocks, Spirit drove 13.8 meters (45.3 feet) on Sol
1854 (March 21, 2009). The next drive, on Sol 1856
(March 23, 2009), achieved a new distance record
for five-wheel driving. Spirit drove 25.82 meters
(84.7 feet), beating the old record by about a meter.
Spirit completed another drive of 12.9 meters (42.3
feet) on Sol 1858 (March 25, 2009).
The sol ahead will see the building of the new
R9.3 flight software on board the rover. The rover
will boot the new software on the subsequent sol.
As of Sol 1858 (March 25, 2009), Spirit's solar
array energy production is 233 watt-hours. Atmospheric
opacity (tau) remains elevated at 1.15. The dust
factor on the solar array, 0.309, means that 30.9
percent of sunlight hitting the solar array penetrates
the layer of accumulated dust on the array. The
rover is in good health in spite of dusty skies.
Spirit's total odometry is 7,665.02 meters (4.76
|* Note: We now
have the traverse maps, Location,
timeline, Spirit's status updates and atmosperic
conditions related to the pictures of Sol
2) and 1843
1843 is related to image
3, the date for this image is March
Atmospheric conditions have worsened over the
Gusev site, although no storm conditions have
on image decoding
Fast and How Much Data the Rover Can Send Back
the DSN helps engineers navigate the spacecraft during
To get a quick look of where we are looking at:
* Join the discussion
by Wendy-lee Pinas
Would you like to explore Mars yourself? Here's some info that
will help you Get Started