. Mars Exploration News .

Opportunity For Some Shoulder Workout At Copper Cliff
by Staff Writers
Pasadena CA (JPL) Dec 21, 2012

Opportunity had driven about 7 feet (2.2 meters) westward earlier on Sol 3153 to get close to the outcrop called "Copper Cliff." Credit: NASA/JPL-Caltech.

Opportunity is working at "Matijevic Hill" (named in honor of Jake Matijevic) at the inboard edge of "Cape York" on the rim of Endeavour Crater.

There, the rover has been conducting in-situ (contact) science measurements at a location called "Copper Cliff."

On Sol 3160 (Dec. 13, 2012), Opportunity began taking images with its Microscopic Imager (MI) for a mosaic of a surface target.

Partway through the activity, the rover's robotic arm experienced a stall in the shoulder azimuth joint.

This has been seen a few times before when the arm is commanded to move at a slow rate, but not the slowest rate.

Magnetic detents normally hold the motor armature when unpowered, and under certain slow-rate conditions they are able to restrain the armature from spinning.

At higher rates, the armature has enough momentum to keep spinning, while at the slowest rates a higher stall threshold is used.

Activities on Sol 3162 (Dec. 15, 2012) confirmed the joint is OK, and an offset placement of the Alpha Particle X-ray Spectrometer (APXS) was completed.

On Sol 3165 (Dec. 18, 2012), Opportunity bumped about 18 feet (5.5 meters) to the west to reach a new set of surface targets in this Copper Cliff area.

The rover will likely continue in-situ investigations in the area through the coming holiday.

As of Sol 3165, the solar array energy production was 533 watt-hours with an increased atmospheric opacity (Tau) of 0.955 and a solar array dust factor of 0.607.

Total odometry is 22.02 miles (35438.37 meters)


Related Links
Mars Rovers at JPL
Mars Rovers at Cornell
Mars News and Information at MarsDaily.com
Lunar Dreams and more

Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Memory Foam Mattress Review

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

Get Our Free Newsletters
Space - Defense - Environment - Energy - Solar - Nuclear


Opportunity Continues Rock Studies
Pasadena CA (JPL) Dec 11, 2012
Opportunity is located at a place named "Matijevic Hill" (named in honor of Jake Matijevic) at the inboard edge of Cape York on the rim of Endeavour Crater. The rover just finished collecting an extensive color Pancam panorama, called the "Matijevic pan" and is now conducting extensive in-situ (contact) investigations. On Sol 3146 (Nov. 29, 2012), Opportunity using the Rock Abrasion ... read more

Apollo's Lunar Dust Data Being Restored

GRAIL Lunar Impact Site Named for Astronaut Sally Ride

NASA probes crash into the moon

No plans of sending an Indian on moon

Mr Xi in Space

China plans manned space launch in 2013: state media

China to launch manned spacecraft

Tiangong 1 Parked And Waiting As Shenzhou 10 Mission Prep Continues

New ISS crew docked at Space Station

Expedition 34 Spends Christmas in Space

Soyuz rocket brings trio to space station

Medical Ops, Fan Checks for Space Crew; New Trio Checks Soyuz

Halfway Between Uranus and Neptune, New Horizons Cruises On

Dwarf planet Makemake lacks atmosphere

Keck Observations Bring Weather Of Uranus Into Sharp Focus

At Pluto, Moons and Debris May Be Hazardous to New Horizons Spacecraft During Flyby

Cassini Instrument Learns New Tricks

From Cassini for the Holidays: A Splendor Seldom Seen

Cassini Spots Mini Nile River on Saturn Moon

Titan, Saturn's Largest Moon, Icier than Scientists Thought

Eighth Landsat Satellite Arrives At Launch Site

Eighth Landsat Satellite Arrives at Launch Site

Satellites eye Great Lakes invasive plant

Turkey Steps up Collaboration with Astrium Services For SPOT 6 And SPOT 7 Data

NASA Puts Orion Backup Parachutes to the Test

White House to honor scientists, inventors

What happens to plant growth when you remove gravity?

To reach final frontier, NASA can't go it alone: analysts

Spiral Structure of Disk May Reveal Planets

Closest sun-like star may have planets

Nearby star is good candidate for Earth-like planets

Venus transit and lunar mirror could help astronomers find worlds around other stars

The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement