Mars Rover Team Diagnosing Unexpected Behavior | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

AMA Drone Report

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday

Airborne-Thursday

Airborne-Friday

Airborne-Unmanned w/AUVSI

Airborne On ANN

AMA 05.25.17

Airborne
05.22.17

Airborne
05.23.17

Airborne
05.24.17

Airborne
05.25.17

Airborne
05.26.17

Airborne-Unmanned 05.23.17

Airborne-YouTube

AMA 05.25.17

Airborne
05.22.17

Airborne
05.23.17

Airborne
05.24.17

Airborne
05.25.17

Airborne
05.26.17

Airborne-Unmanned 05.23.17

XPONENTIAL Innovation Preview -- www.allthingsunmanned.com

Thu, Jan 29, 2009

Mars Rover Team Diagnosing Unexpected Behavior

Spirit Grows Increasingly Unresponsive

The team operating NASA's Mars Exploration Rover Spirit plans diagnostic tests this week, after Spirit did not report some of its weekend activities, including a request to determine its orientation after an incomplete drive.

On Sunday -- during the 1,800th Martian day ("sol") of what was initially planned as a 90-sol mission on Mars -- information radioed from Spirit indicated the rover had received its driving commands for the day but had not moved. That can happen for many reasons, including the rover properly sensing that it is not ready to drive. However, other behavior on Sol 1800 was even more unusual: Spirit apparently did not record the day's main activities into the non-volatile memory, the part of its memory that persists even when power is off.

On Monday, Spirit's controllers at NASA's Jet Propulsion Laboratory in Pasadena, CA chose to command the rover on Tuesday, Sol 1802, to find the sun with its camera in order to precisely determine its orientation. Not knowing its orientation could have been one possible explanation for Spirit not doing its weekend drive. Early Tuesday, Spirit reported that it had followed the commands, and in fact had located the sun, but not in its expected location.

"We don't have a good explanation yet for the way Spirit has been acting for the past few days," said JPL's Sharon Laubach, chief of the team that writes and checks commands for the rovers. "Our next steps will be diagnostic activities."

Among other possible causes, the team is considering a hypothesis of transitory effects from cosmic rays hitting electronics. On Tuesday, Spirit apparently used its non-volatile memory properly.

Despite the rover's unexplained behavior, Mars Exploration Rovers' Project Manager John Callas of JPL said Wednesday, "Right now, Spirit is under normal sequence control, reporting good health and responsive to commands from the ground."

JPL, a division of the California Institute of Technology, Pasadena, manages the Mars Exploration Rover project for the NASA Science Mission Directorate, Washington. Spirit and its twin, Opportunity, landed on Mars in January 2004 and have operated 20 times longer than their original prime missions.

FMI: www.nasa.gov

Advertisement

More News

Airborne-Unmanned 05.23.17: Courts Nix Model Regs, Autonymous Flt, WATT 300

Also: King Schools Update, Kittyhawk APP, Robird And Integrated Drone Solutions, ICAO Drone Tracking The unmanned community got a bit of a jolt late last week when the US Court of >[...]

AMA Drone Report 05.25.17: Court Kills FAA Model Drone Registration, DJI Spark!

Also: AMA Reacts To Court, FAA Reaction, AUVSI Reaction, Kittyhawk Flight Deck APP Score one for us little guys... As you may have heard, the U.S. Court of Appeals in Washington, D>[...]

Airborne 05.26.17: Elvis' Jetstar, ACJ330neo, Redbull's Muroya Aims For Chiba

Also: Revitalizing The Aero-Verse, NAAA's Concerns, 737 Air Tankers, SD Air & Space Museum, LAX Mishap, Avidyne After sitting on a runway in Roswell, NM for more than 30 years,>[...]

ANN's Daily Aero-Term (05.28.17): Security Notice (SECNOT)

Security Notice (SECNOT) A SECNOT is a request originated by the Air Traffic Security Coordinator (ATSC) for an extensive communications search for aircraft involved, or suspected >[...]

ASA Names Director Of Marketing

Brian Snider Has Worked For The Company Since 2008 Aviation Supplies & Academics, Inc. (ASA) is pleased to announce that Brian Snider has accepted the Director of Marketing pos>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2017 Web Development & Design by Pauli Systems, LC