Featured Research

from universities, journals, and other organizations

Orbiter puts itself into standby safe mode

Date:
July 20, 2010
Source:
NASA/Jet Propulsion Laboratory
Summary:
NASA's Mars Odyssey orbiter put itself into a safe standby mode on Wednesday, July 14, and the team operating the spacecraft has begun implementing careful steps designed to resume Odyssey's science and relay operations this week.

Artist concept of Odyssey.
Credit: NASA/JPL

NASA's Mars Odyssey orbiter put itself into a safe standby mode on Wednesday, July 14, and the team operating the spacecraft has begun implementing careful steps designed to resume Odyssey's science and relay operations this week.

Engineers have diagnosed the cause of the safe-mode entry as the spacecraft's proper response to unexpected performance by an electronic encoder. That encoder controls motion of a gimbal that adjusts the position of the solar array. Odyssey switched to a redundant encoder, and there is no sign of any mechanical problem with the gimbal.

Commands from Earth have switched Odyssey back to using its high-gain antenna. The programmed response to the detected problem on July 14 initially shifted the spacecraft to slower communication via its low-gain antenna.

The spacecraft team recovered downward-pointing operations, out of safe mode, on Friday, July 16. "We expect to be back to full operations this week," said Odyssey Project Manager Phil Varghese of NASA's Jet Propulsion Laboratory, Pasadena, Calif.

Odyssey has been orbiting Mars since 2001. In addition to its own major scientific discoveries and continuing studies of the planet, the Odyssey mission has played important roles in supporting the missions of the Mars rovers Spirit and Opportunity and the Phoenix Mars Lander.

The rover Opportunity was not able to transmit data to ground controllers via Odyssey while the orbiter was in safe mode. Science activities were delayed, but critical activities have not been affected.

JPL, a division of the California Institute of Technology in Pasadena, manages Mars Odyssey for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft. Additional information about Odyssey is at http://www.nasa.gov/mission_pages/odyssey .


Story Source:

The above story is based on materials provided by NASA/Jet Propulsion Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Jet Propulsion Laboratory. "Orbiter puts itself into standby safe mode." ScienceDaily. ScienceDaily, 20 July 2010. <www.sciencedaily.com/releases/2010/07/100720215455.htm>.
NASA/Jet Propulsion Laboratory. (2010, July 20). Orbiter puts itself into standby safe mode. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2010/07/100720215455.htm
NASA/Jet Propulsion Laboratory. "Orbiter puts itself into standby safe mode." ScienceDaily. www.sciencedaily.com/releases/2010/07/100720215455.htm (accessed April 20, 2014).

Share This



More Space & Time News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

SpaceX's Dragon Spacecraft Captured by International Space Station

SpaceX's Dragon Spacecraft Captured by International Space Station

Reuters - US Online Video (Apr. 20, 2014) SpaceX's unmanned Dragon spacecraft makes a scheduled Easter Sunday rendezvous with the International Space Station. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Raw: Easter Morning Delivery for Space Station

Raw: Easter Morning Delivery for Space Station

AP (Apr. 20, 2014) Space station astronauts got a special Easter treat: a cargo ship full of supplies. The SpaceX company's cargo ship, Dragon, spent two days chasing the International Space Station following its launch from Cape Canaveral. (April 20) Video provided by AP
Powered by NewsLook.com
A Hoax? Cosmetics Company Wants To Brighten The Moon

A Hoax? Cosmetics Company Wants To Brighten The Moon

Newsy (Apr. 19, 2014) FOREO, a Swedish cosmetics company, says it wants to brighten the moon to lower electricity costs. Video provided by Newsy
Powered by NewsLook.com
Raw: Space X Launches to Space Station

Raw: Space X Launches to Space Station

AP (Apr. 18, 2014) On it's second attempt this week, The Space X company launched Friday from Cape Canaveral to ferry supplies to the International Space Station. (April 18) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins