<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"><meta http-equiv="Content-Type" content="text/html charset=us-ascii"><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"><div style="margin: 0px; font-size: 12px; "></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px"><b>SPIRIT UPDATE: Spirit Remains Silent at Troy</b> - <i>sols 2621-2627, May 18-24, 2011</i>:</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">"No communication has been received from Spirit since Sol 2210 (March 22, 2010).</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">More than 1,300 commands were radiated to Spirit as part of the recovery effort in an attempt to elicit a response from the rover. No communication has been received from Spirit since Sol 2210 (March 22, 2010). The project concluded the Spirit recovery efforts on May 25, 2011. The remaining, pre-sequenced ultra-high frequency (UHF) relay passes scheduled for Spirit on board the Odyssey orbiter will complete on June 8, 2011.</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">Total odometry is unchanged at 7,730.50 meters (4.80 miles)."</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px"><b>OPPORTUNITY UPDATE: Rock Grinding Action </b>- <i>sols </i>3077-3084, Sept. 19, 2012-Sept. 26<i>, 2012</i>:</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">"Opportunity is conducting an in-situ (contact) science campaign at a putative location of clay minerals at the inboard edge of Cape York on the rim of Endeavour Crater.</span></div><p style="margin: 0px 0px 14px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">The rover is positioned next to a large light-toned block of exposed outcrop. Earlier Panoramic (Pancam) imagery indicates mineral hydration in this block. Opportunity began back on Sol 3076 (Sept. 18, 2012), using the Rock Abrasion Tool (RAT) to brush the surface at a target location called "Azilda1." On Sol 3078 (Sept. 20, 2012), the rover continued brushing the surface, now at an adjacent target called "Azlida2." The brushing was followed by a Microscopic Imager (MI) mosaic and an Alpha Particle X-ray Spectrometer (APXS) placement on the same. On Sol 3080 (Sept. 22, 2012), Opportunity continued this brushing campaign with another surface target, slightly offset from the previous, called (you guessed it) "Azilda3."</span></p><p style="margin: 0px 0px 14px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">Again, the brushing was followed by a MI mosaic and an APXS integration. With an extended target region brushed and surveyed, on Sol 3083 (Sept. 25, 2012), Opportunity performed a RAT grind on the location Azilad2. Initial telemetry indicates the grind performed to a depth of about 0.03 inches (0.8 mm). The plan ahead is to either, grind deeper or retract the RAT and survey the grind hole. <br>
As of Sol 3084 (Sept. 26 2012), the solar array energy production was 553 watt-hours with an atmospheric opacity (Tau) of 0.658 and a solar array dust factor of 0.657.</span></p><p style="margin: 0px 0px 14px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">Total odometry is 21.78 miles (35,047.47 meters)."</span></p><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; color: rgb(4, 51, 255); "><span style="letter-spacing: 0.0px; color: #000000">Landing sites link - <a href="http://marsoweb.nas.nasa.gov/landingsites/"><span style="letter-spacing: 0px; ">http://marsoweb.nas.nasa.gov/landingsites/</span></a> </span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">Visit the Mars Exploration Rover page at</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; color: rgb(4, 51, 255); "><span style="letter-spacing: 0.0px; color: #000000"> <a href="http://marsrovers.jpl.nasa.gov/home/index.html"><span style="letter-spacing: 0px; ">http://marsrovers.jpl.nasa.gov/home/index.html</span></a>.</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="font-family: Helvetica; "></span></div></body></html>