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Topic: Mars Climate Orbiter


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In the News (Thu 28 Aug 14)

  
  Mars Climate Orbiter - Wikipedia, the free encyclopedia
Mars Climate Orbiter was launched on a Delta 7425 (a Delta II Lite launch vehicle with four strap-on solid rocket boosters and a Star 48 (PAM-D) third stage).
The orbiter was to begin aerobraking, using the solar panel to provide resistance and continue until a 90 × 405 km orbit was achieved, nominally on 22 November 1999, with periapsis at 89 N. The hydrazine thrusters would be used to change the orbit to a 2-hour, 421 km near-circular polar science mapping orbit on 1 December 1999.
At the end of the mapping mission on 15 January 2002, the orbiter was to be placed in a stable orbit and function as a UHF relay for the Mars 2001 mission.
en.wikipedia.org /wiki/Mars_Climate_Orbiter   (1539 words)

  
 Mars Climate Orbiter
The Mars Surveyor '98 program is comprised of two spacecraft launched separately, the Mars Climate Orbiter (formerly the Mars Surveyor '98 Orbiter) and the Mars Polar Lander (formerly the Mars Surveyor '98 Lander).
The Mars Climate Orbiter was destroyed when a navigation error caused it to miss its target altiude at Mars by 80 to 90 km, instead entering the martian atmosphere at an altitude of 57 km during the orbit insertion maneuver.
Mars Climate Orbiter was launched on a Delta 7425 (a Delta II Lite launch vehicle with four strap-on solid-rocket boosters and a Star 48 (PAM-D) third stage).
www.solarviews.com /eng/morb98.htm   (1021 words)

  
 Mars Climate Orbiter - Aerobraking   (Site not responding. Last check: 2007-10-23)
Mars Climate Orbiter will be starting from an orbit much lower than Mars Global Surveyor - with an orbit period only one-third as long - so it will require much less aerobraking.
If Mars Climate Orbiter is launched within the first eight days of its launch period, it will be able to reach its final science-gathering orbit at least two weeks before Mars Polar Lander arrives.
Although the orbiter's transmitter may be on continuously during aerobraking, contact with Earth will not be possible during the aeropasses or when the spacecraft passes behind Mars as seen from Earth.
www.psc.edu /Mars/msp98/orbiter/aerobrake.html   (630 words)

  
 CNN - NASA loses contact with Mars orbiter - September 23, 1999
Climate Orbiter was to relay signals from the lander to Earth.
Climate Orbiter's communications role for Polar Lander mission was to last up to 90 days.
Climate Orbiter also was to relay signals for a follow-on Mars lander mission set for launch in 2001.
www.cnn.com /TECH/space/9909/23/mars.orbiter.03   (830 words)

  
 Mars Climate Orbiter/Mars Polar Lander - Mission Overview
The Mars Climate Orbiter was launched aboard a Delta 7425 in December 1998, and arrives at Mars in September 1999.
The Mars Polar Lander was launched on a Delta 7425 in January 1999, and arrives at Mars in December 1999.
During entry, the Mars Polar Lander is slowed by a Mars Pathfinder-heritage aeroshell and parachute.
science.ksc.nasa.gov /mars/msp98/mission_overview.html   (1439 words)

  
 Mars Climate Orbiter
The Mars Climate Orbiter is due for launch on Dec. 10 on a Boeing Delta 2 launch vehicle from Cape Canaveral Air Station, Florida.
The launch of the Mars Climate Orbiter is scheduled to occur aboard a Boeing Delta II (7425) rocket on Dec. 10, 1998.
The 1998 Mars Climate Orbiter and Mars Polar Lander missions are managed by the Jet Propulsion Laboratory for NASA's Office of Space Science, Washington, D.C. JPL is a division of the California Institute of Technology, Pasadena, Calif. Lockheed Martin Astronautics, Denver, Colo. which built and operates the spacecraft, is JPL's industrial partner in the mission.
www.xs4all.nl /~carlkop/marsclim.html   (2338 words)

  
 Space Today Online - Exploring the Red Planet - Mars Climate Orbiter - Mars Polar Lander - Deep Space 2 - Mars Surveyor ...
Mars Climate Orbiter, Mars Polar Lander and Deep Space 2 all were lost in 1999.
Climate Orbiter, after cruising across space for 286 days, was supposed to drop into an elliptical orbit around Mars.
The orbiter was to have studied the planet's atmosphere, climate, meteorology and volatile surface materials such as water ice and frozen carbon dioxide.
www.spacetoday.org /SolSys/Mars/MarsExploration/MarsSurveyor98.html   (1831 words)

  
 Mars Exploration: Missions
Mars Climate Orbiter was designed to function as an interplanetary weather satellite and a communications relay for Mars Polar Lander.
The orbiter carried two science instruments: a copy of an atmospheric sounder on the Mars Observer spacecraft lost in 1993, and a new, lightweight color imager combining wide- and medium-angle cameras.
Mars Climate Orbiter was lost on arrival September 23, 1999.
mars.jpl.nasa.gov /missions/past/climorb.html   (84 words)

  
 GPN-2000-000498 - Mars Climate Orbiter
The orbiter was to conduct a two year primary mission to profile the Martian atmosphere and map the surface.
During its primary mission, the orbiter was to monitor Mars atmosphere and surface globally on a daily basis for one Martian year (two Earth years), observing the appearance and movement of atmospheric dust and water vapor, as well as characterizing seasonal changes of the planet's surface.
Unfortunately, Mars Climate Orbiter burned up in the Martian atmosphere on September 23, 1999, due to a metric conversion error that caused the spacecraft to be off course.
grin.hq.nasa.gov /ABSTRACTS/GPN-2000-000498.html   (231 words)

  
 Mars Climate Orbiter   (Site not responding. Last check: 2007-10-23)
The MCO was to have used a technique called aerobraking, which uses a planet's atmospheric friction to reduce the spacecraft's velocity (See Appendix 1).
"Mars Climate Orbiter's first assignment after it completes aerobraking will be to serve as the communications relay for its sibling spacecraft, Mars Polar Lander, set to land near the south pole on December 3." (p3, [5]).
The root cause for the loss of the Mars Climate Orbiter in September 1999, was due to the failure to convert the outputted Imperial measurements to the required metric measurements, within a specific piece of ground software.
www.cs.usyd.edu.au /~anna/Mars.htm   (2136 words)

  
 CNN - NASA's metric confusion caused Mars orbiter loss - September 30, 1999
Climate Orbiter was to relay data from an upcoming mission called Mars Polar Lander, set to set down on Mars in December.
Both Mars Surveyor spacecraft were designed to help scientists understand Mars' water history and the potential for life in the planet's past.
There is strong evidence that Mars was once awash with water, but scientists have no clear answers to where the water went and what drove it away.
www.cnn.com /TECH/space/9909/30/mars.metric   (410 words)

  
 SPACE.com -- Navigation Team Was Unfamiliar with Mars Climate Orbiter
The Mars Climate Orbiter was lost at the Red Planet nearly seven weeks ago because the mission's navigation team was unfamiliar with the spacecraft.
The Mars Climate Orbiter was lost and presumed destroyed when it shot within 35 miles (57 kilometers) of the martian surface as controllers were attempting to put it into orbit.
The Climate Orbiter was to have served as a communications and data relay station between the Polar Lander and Earth.
www.space.com /news/mco_report-b_991110.html   (1119 words)

  
 Mars Climate Orbiter - Search Results - MSN Encarta   (Site not responding. Last check: 2007-10-23)
Mars Climate Orbiter, United States spacecraft launched in 1998 to explore the planet Mars.
Mars (planet) : study and exploration : Mars Climate Orbiter: 1999: Mars: Spacecraft Sent to Study Climate Presumed Destroyed
The Mars Climate Orbiter, a $125-million spacecraft described as the National Aeronautics and Space Administration's (NASA) first interplanetary weather satellite, disappeared as it attempted to establish an orbit around Mars on September 23, 1999.
encarta.msn.com /Mars_Climate_Orbiter.html   (143 words)

  
 Mars Reconnaissance Orbiter
Mars Reconnaissance Orbiter was the first spacecraft designed from the beginning for aerobraking to place it into the desired orbit around Mars.
During its two-year primary science mission, the Mars Reconnaissance Orbiter was to conduct eight different science investigations at Mars, involving global mapping, regional surveying, and high-resolution targeting of specific spots on the surface.
MCS (Mars Climate Sounder) - This radiometer functioned as an atmospheric profiler to detect vertical variations of temperature, dust, and water vapor concentrations in the Martian atmosphere.
www.astronautix.com /craft/marbiter.htm   (951 words)

  
 Mars Climate Orbiter (MCO)
The Mars Surveyor '98 program is comprised of two spacecraft launched separately, the MCO (Mars Climate Orbiter, formerly the Mars Surveyor '98 Orbiter) and the MPL (Mars Polar Lander, formerly the Mars Surveyor '98 Lander).
The Mars Climate Orbiter was destroyed when a navigation error caused it to miss its target altitude at Mars by 80 to 90 km, instead entering the Martian atmosphere at an altitude of 57 km during the orbit insertion maneuver.
Mars Climate Orbiter was launched on a Delta-7425.
www.skyrocket.de /space/doc_sdat/mars_climate_orbiter.htm   (987 words)

  
 Mars Climate Orbiter lost
Climate Orbiter was at the end of a 416-million-mile journey Thursday when it began firing its engine to slide into orbit around Mars on a mission to study the weather.
Mars Climate Orbiter is among a small armada of craft planned for launch through 2005 on missions to study the planet exhaustively and especially look for signs of past or present life.
MCO was to serve as the telecommunications relay for the Mars Polar Lander, which will arrive on December 3rd and touch down on a sediment plain near the planet's south pole.
www.xs4all.nl /~carlkop/moi.html   (4992 words)

  
 Mars Climate Orbiter
Mars Climate Orbiter was launched in December 1998 and was scheduled to arrive at Mars in September 1999.
As it prepared to enter orbit around Mars, the spacecraft was targeted too close to the surface, and either burned up in the atmosphere, or continued past the planet into space.
Observe the Martian climate from a 400 km near circular, near polar mapping orbit 2 year science mapping, 5 year data relay mission.
web.ukonline.co.uk /buchert/missions/climate_orbiter.html   (188 words)

  
 Software Engineering: Mars Climate Orbiter
The Mars Climate Orbiter was part of an extended series of missions conducted by NASA to expore Mars during an extended period when Mars and Earth's orbits brought them into relative proximity.
Subsequent analysis of the failure determined that the principle cause of the failure was confusion in units, instead of sending thrust information to the orbiter in Newtons, the instructions were in pounds, a factor of 2.2 times greater.
These instructions were used by the orbiter's earth based navigation controllers to adjust the craft's aspect during the voyage in order to compensate for changes caused by the assymmetry of the orbiter and pressure from the solar wind on the panels.
www.vuw.ac.nz /staff/stephen_marshall/SE/Failures/SE_MCO.html   (902 words)

  
 Mars Climate Orbiter   (Site not responding. Last check: 2007-10-23)
Mars Climate Orbiter, the first of the two Mars Surveyor 1998 spacecraft (the other being the Mars Polar Lander), was successfully launched on December 11, 1998 by a Delta II 7425 launch vehicle.
Its mission was to do extensive research of Mars' atmosphere, weather and climate, i.e., observe wind, water vapor, volatiles, carbon dioxide budget, clouds etc. Moreover, it should have served as relay for the Mars Polar Lander.
Mars Climate Orbiter finally got lost when it probably came to close to planet Mars during its Mars Orbit Insertion manouver on September 23, 1999.
www.seds.org /~spider/spider/Mars/ms98mco.html   (364 words)

  
 SPACE.com -- Human Error Doomed Mars Climate Orbiter
NASA engineers confusing metric units with English units are to blame for a navigation error that may have sent the $125 million Mars Climate Orbiter into a suicide path with the Martian atmosphere on September 23, a Jet Propulsion Laboratory review board announced Thursday.
It was to study Martian climate and weather patterns.
While NASA is gazing back at the orbiter's accident, it is also looking forward to another Mars mission, the Mars Polar Lander, which is scheduled to land on the planet on December 3.
www.space.com /news/orbiter_error_990930.html   (472 words)

  
 Mars Climate Orbiter
The probe was to enter a 160 km x 38600 km polar orbit around Mars on September 23,1999, and use aerobraking to reach a 373 km x 437 km x 92.9 degree sun-synchronous mapping orbit by November 23 1999.
While the Mars Orbit Insertion burn began as planned on September 23, 1999 at 08:50 GMT, no signal was received after the spacecraft went behind the planet.
Mars Climate Orbiter was equipped with a MARCI colour imager for mapping and weather studies; a PMIRR radiometer; and a UHF communications system which would also relay data from the (equally unsuccessful) Mars Polar Lander, scheduled for launch in January 1999.
www.astronautix.com /details/mar12378.htm   (398 words)

  
 Wright Center for Science Education at Tufts University   (Site not responding. Last check: 2007-10-23)
In addtion to collecting data, the Orbiter will act as a relay station for five years, assisting in data transmission to and from the Mars Polar Lander, as well as the 2001 Lander mission.
NASA's Mars Climate Orbiter is believed to be lost due to a suspected navigation error.
Unfortunately for MCO, the root cause was not caught by the processes in place in the MCO project.
www.tufts.edu /as/wright_center/work_con_lec/astro_wkshp_res/astro_wkshp_cd_2001/mission_docs/mars_climate_orb.html   (1293 words)

  
 Welcome To Mars Climate Orbiter & Mars Polar Lander
Mars Surveyor 98 is actually two missions whose total price tag is about the same as Mars Pathfinder.
The "Volatiles and Climate History" theme for the 1998 Mars Surveyor missions was recommended by the Mars Science Working Group and is aligned directly with NASA''s Mars exploration strategy for the next decade focusing on: Evidence of past or present life, Climate, and Resources.
The science complement for the 1998 lander includes: the Mars Volatile and Climate Surveyor (MVACS) integrated lander payload with Dr. David Paige of UCLA as Principal Investigator, the Mars Descent Imager (MARDI) with Dr.
science.ksc.nasa.gov /mars/msp98/welcome.html   (487 words)

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