[meteorite-list] Mars Exploration Rover Update: May 28 - June 4, 2014

From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Mon, 9 Jun 2014 15:24:02 -0700 (PDT)
Message-ID: <201406092224.s59MO2v5017913_at_zagami.jpl.nasa.gov>

http://marsrovers.jpl.nasa.gov/mission/status.html#opportunity

OPPORTUNITY UPDATE: Opportunity Recovering From Flash Memory Problems
- sols 3677-3683, May 28, 2014-June 04, 2014:

Opportunity is exploring the west rim of Endeavour Crater. However, the
rover experienced a set of reset events triggered by an error writing to
flash memory.

On Sol 3677 (May 28, 2014), Opportunity had a nominal drive of just over
62 feet (19 meters). On the next sol, the rover moved 57 feet (17.4
meters) further, generally to the south, southeast. On Sol 3679 (May 30,
2014), Opportunity performed an in-situ (contact) science campaign as
the first sol of a 'touch and go.' A touch and go is where the rover
uses the robotic arm on the first sol of a multi-sol plan (the touch)
and then drives on the next sol (the go). However, Opportunity
experienced a warm reset on the second sol, Sol 3680 (May 31, 2014). The
touch was successful, collecting a Microscopic Imager (MI) mosaic of the
surface target, followed by an Alpha Particle X-ray Spectrometer (APXS)
measurement overnight, but the drive on the next sol never occurred
because of the reset.

These warm resets have occurred in the past when an error occurs while
writing to a specific area of flash (non-volatile) memory. The rover was
restored to normal sequence operation on Sol 3682 (June 2, 2014), after
the Sol 3680 reset. Another warm reset occurred on Sol 3683 (June 4,
2014), but the rover was restored to nominal operations the following sol.

As of Sol 3682, the solar array energy production was 733 watt-hours
with an atmospheric opacity (Tau) of 0.682 and a solar array dust factor
of 0.908.

Total odometry is 24.51 miles (39.44 kilometers).
Received on Mon 09 Jun 2014 06:24:02 PM PDT