Significant Incidents In Uncrewed Missions
ACRONYMS
THE TEAM
FSO TOOLS
CRITERIA
FM
IMAGE
SOHO
STEREO-B
TV
WIRE
Frequency Modulation
Imager for Magnetopause‐to‐Aurora Global
Solar and Heliospheric Observatory
Solar Terrestrial Relations Observatory
Televsion
Wide Field Infrared Explorer
https://sma.nasa.gov/sma-disciplines/mishap-investigation
(click on the FSO TOOLS link near the top to see the other interactive tools)
EXECUTIVE SPONSOR
TEAM LEAD
RESEARCH & INFOGRAPHIC DESIGN
GRAPHIC DESIGNER
Gail Skowron, Ph.D.
Scott Johnson
Patrick Huckaby
Dennis Pate
Kevin Nash
Faisal Ali
OTHER CONTRIBUTORS
Everett Cole
Andy Foster
Rufus Jackson
Gary Johnson
Tim Kassebaum
Tieva De Koninck
Barbara Kress
Jennifer Reister
David Salvador
PAST CONTRIBUTORS
Bob Bobola David Bradt Stuart Monteleone Phillip Lewis Rusty Sheier Erin Stevenson Keith Tischler Ashley Tomi Amaris Vigil Ed Weissblatt Bill Wood Nigel Packham
HELP
The Significant Incidents & Close Calls in Human Spaceflight: EVA Operations interactive tool is optimized for use with Firefox.
https://www.mozilla.org/en-US/firefox/new/
GENERAL USAGE - Click or tap an event for a pop-up with additional information. Click or tap the event again to close the pop-up.
DESKTOP TIPS - For best results, please use your browser's full screen mode:
Windows: Press F11.
Mac: Click the green Full Screen button in the upper-left corner of the browser window.
To zoom in/out:
Windows: Control-plus/minus to zoom in/out*
Mac: Command-plus/minus to zoom in/out*
TABLET/MOBILE TIPS - This site is optimized for desktops, but also functions on a tablet or phone. For best results on mobile devices, close pop-ups before repositioning the page or zooming in/out.
SOURCES INFORMATION
Source documents require Adobe Acrobat to view.
Most of the source files contain bookmarks to help locate the relevant information.
Source documents labeled with a padlock are controlled and require NASA authentication to view.
*May cause formatting inconsistencies.
M - Primary Mission
E - Extended Mission
Failed
Partial Success
ORBIT
SURFACE OPS
EARTH
FLY-BY
DEEP SPACE
EARTH ORBIT
TIROS-1
6/18/1960
M
Ranger 4
4/26/1962
M
Biosatellite 1
~1/3/1967
M
Landsat 1
1/6/1978
E
Solar Maximum Mission (SolarMax)
4/26/1962
M
Landsat 6
5/10/1993
M
Wake Shield Facility 1
3/2/1994
M
Wide Field Infrared Explorer (WIRE)
3/5/1999
M
Compton Gamma Ray Observatory
12/1/1999
E
E
Imager for Magnetopause-to-Aurora Global
Exploration (IMAGE)
12/18/2005
Far Ultraviolet Spectroscopic Explorer
7/12/2007
E
Mars Polar Lander
12/3/1999
M
Cassini-Huygens
7/15/2017
M
Mariner 10
11/13/1973
M
Ranger 4
9/21/1974
M
Clementine
5/7/1994
M
Clementine
6/1/1994
M
Deep Space 2
12/3/1999
M
Surveyor 2
9/23/1966
M
Surveyor 3
5/4/1967
M
Surveyor 4
7/17/1967
M
Viking 2 - Lander
4/11/1980
E
Solar Maximum Mission (SolarMax)
11/1/1980
M
Deep Space 1
11/11/1999
E
Deep Space 1
12/18/2001
E
Pioneer 1 (Able 2)
10/11/1958
M
M
Solar and Heliospheric Observatory
(SOHO)
12/21/1998
Ranger 1
8/30/1961
M
Mars Climate Orbiter
9/23/1999
M
Ranger 3
1/28/1962
M
Galileo Orbiter
9/21/2003
M
Ranger 5
10/18/1962
E
Mars Global Surveyor
11/21/2006
E
Mars Observer
9/21/1993
M
STEREO-B
10/1/2014
E
Mars Pathfinder - Sojourner Rover
10/7/1997
M
Opportunity Rover
2/13/2019
M
Genesis
9/8/2004
M
TIROS-1 | 6/18/1960
Loss of communication. Electrical power failure prevented further useful TV transmission.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1960-002B
Ranger 4 | 4/26/1962
Failure of a timer in the spacecraft’s central computer and
sequencer resulted in a failure to deploy solar arrays and navigation systems.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1962-012A
https://solarsystem.nasa.gov/missions/ranger-4/in-depth/
https://www.jpl.nasa.gov/missions/ranger-4
Biosatellite | ~1/3/1967
Communications lost. Deorbit burn failed to occur. Uncontrolled orbital decay on 2/15/1967.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1966-114A
Landsat 1 | 1/6/1978
Camera failed on 8/5/1972, and the tape recorder followed. Without visual, the craft experienced excessive sunlight which led to overheating.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1972-058A
Solar Maximum Mission (SolarMax) | 4/26/1962
Attitude control system failure resulted in the spacecraft being put in standby. Repairs were done during a shuttle mission in ~4/1/1984.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1980-014A
Landsat 6 | 5/10/1993
The satellite lost connection with the ground shortly after launch and before achieving orbit. A rupture was identified in the hydrazine manifold.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=LNDSAT6
Wake Shield Facility 1 | 3/2/1994
Failed on-orbit checkout prior to release from shuttle arm. Communication issues prevented deployment from shuttle.
Source(s):
Wide Field Infrared Explorer (WIRE) | 3/5/1999
Premature ejection of aperture cover resulted in loss of solid hydrogen cryogen. This resulted in the loss of primary mission capability.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1999-011A
https://www.jpl.nasa.gov/missions/wide-field-infrared-explorer-wire
Compton Gamma Ray Observatory | 12/1/1999
Gyro failure led to decision to deorbit observatory while attitude control was still available.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1991-027B
Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) | 12/18/2005
Solid state power converter tripped without the ability to rest. Communication was lost
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2000-017A
Far Ultraviolet Spectroscopic Explorer | 7/12/2007
All reaction wheels failed. After final wheel failed, orbital decay occurred on 11/18/2007.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1999-035A
Mars Polar Lander | 12/3/1999
Software did not account for vibrations from landing gear deployment. Deployment was interpreted as touchdown, which resulted in engine shutdown at too high an altitude.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1999-001A
https://solarsystem.nasa.gov/missions/mars-polar-lander-deep-space-2/in-depth/
https://www.jpl.nasa.gov/missions/mars-polar-lander-deep-space-2
Cassini-Huygens | 7/15/2017
Communications firmware did not account for Doppler shift during probe descent. Cassini orbit modified to minimize shift and allow ~50% of Huygens experiment data to be received.
Source(s):
https://spectrum.ieee.org/tech-history/space-age/titan-calling
https://solarsystem.nasa.gov/missions/cassini/overview/
https://www.jpl.nasa.gov/missions/cassini-huygens
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1997-061A
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1997-061C
Mariner 10 | 11/13/1973
Star tracker locked onto paint flakes and lost lock on the
guide star Canopus. An automated safety protocol recovered Canopus.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1973-085A
https://solarsystem.nasa.gov/missions/mariner-10/in-depth/
Ranger 4 | 9/21/1974
Onboard computer experienced unplanned resets, which made reconfiguring the clock sequence and subsystems a necessity.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1962-012A
https://solarsystem.nasa.gov/missions/ranger-4/in-depth/
Clementine | 5/7/1994
Computer error resulted in thruster firing until fuel was depleted.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1994-004A
Clementine | 6/1/1994
Electrical power dropped to a level where the telemetry was no longer reliable.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1994-004A
Deep Space 2 | 12/3/1999
Two impact probes to be deployed from Mars Polar Lander never established contact.
Source(s):
https://solarsystem.nasa.gov/missions/mars-polar-lander-deep-space-2/in-depth/
https://www.jpl.nasa.gov/missions/mars-polar-lander-deep-space-2
Surveyor 2 | 9/23/1966
An engine failure resulted in loss of contact before landing. Uncontrolled crash into the Moon.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1966-084A
https://solarsystem.nasa.gov/missions/surveyor-2/in-depth/
Surveyor 3 | 5/4/1967
Spacecraft powered down on 4/3/1967 for lunar nightfall. Spacecraft did not respond to commands to power up.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1967-035A
https://solarsystem.nasa.gov/missions/surveyor-3/in-depth/
Surveyor 4 | 7/17/1967
Radio signals from the spacecraft ceased during the terminal descent phase. It is also possible the spacecraft solid propellant retrorockets exploded.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1967-068A
https://solarsystem.nasa.gov/missions/surveyor-4/in-depth/
Viking 2 - Lander | 4/11/1980
Propellant leak during extended mission resulted in orbiter being safed and shut down.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1975-083C
https://solarsystem.nasa.gov/missions/viking-2/in-depth/
Solar Maximum Mission (SolarMax) | 11/1/1980
Human error during extended mission resulted in failure. Ground controller sent bad command that overwrote antenna pointing data, resulting in loss of communications.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1980-014A
Mars Pathfinder - Sojourner Rover | 10/7/1997
Loss of power from suspected battery failure during extended missions. Communication was lost.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=MESURPR
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1996-068A
https://solarsystem.nasa.gov/missions/mars-pathfinder/in-depth/
https://www.jpl.nasa.gov/missions/mars-pathfinder-sojourner-rover
Opportunity Rover | 2/13/2019
Failed to establish communications after hibernating through dust storm. Resulted in a loss of communications.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2003-032A
https://solarsystem.nasa.gov/missions/opportunity/in-depth/
https://www.jpl.nasa.gov/missions/mars-exploration-rover-opportunity-mer
Genesis | 9/8/2004
Incorrectly installed G-switch prevented emergency landing system from deploying parachute and resulted in a crash landing.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2001-034A
https://solarsystem.nasa.gov/missions/genesis/in-depth/
Deep Space 1 | 11/11/1999
Star tracker failed. Software patch uplinked to allow science camera to be used for navigation.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1998-061A
https://solarsystem.nasa.gov/missions/deep-space-1/in-depth/
https://www.jpl.nasa.gov/missions/deep-space-1-ds1
Deep Space 1 | 12/18/2001
Ion engine failed due to contamination. Repeated firing eventually cleared contamination and recovered function.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1998-061A
https://solarsystem.nasa.gov/missions/deep-space-1/in-depth/
https://www.jpl.nasa.gov/missions/deep-space-1-ds1
Pioneer (Able 2) | 10/11/1958
After a failed launch the spacecraft was inserted too low. Useful data and evidence of the Van Allen Belt was still able to be returned.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1958-007A
Ranger 1 | 8/30/1961
The spacecraft was stranded in low Earth orbit when Agena-B failed to reignite. Flight testing was a success, but little science data was returned.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1961-021A
https://solarsystem.nasa.gov/missions/ranger-1/in-depth/
Ranger 3 | 1/28/1962
A malfunction in the booster guidance system resulted in excessive spacecraft speed. The TM antenna lost earth acquisition after command signals were reversed due to the spacecraft pitching in the wrong direction.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1962-001A
https://solarsystem.nasa.gov/missions/ranger-3/in-depth/
Ranger 5 | 10/18/1962
The spacecraft failed to receive power. The batteries ran down after 8 hours, 44 minutes, rendering the spacecraft inoperable.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1962-055A
https://solarsystem.nasa.gov/missions/ranger-5/in-depth/
Mars Observer | 9/21/1993
Fuel line ruptured during fuel tank pressurization, causing the spacecraft to spin uncontrollably and communication to be lost.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1992-063A
https://solarsystem.nasa.gov/missions/mars-observer/in-depth/
Solar and Heliospheric Observatory (SOHO) | 12/21/1998
High-gain antenna and gyroscope failures sent SOHO into
a spin. Power was lost after high-gain Y- axis stepper motor failure.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1995-065A
Mars Climate Orbiter | 9/23/1999
Navigation error due to units being sent in English instead of being converted to metric. Incorrect units caused the craft to miss its target altitude.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1998-073A
https://solarsystem.nasa.gov/missions/mars-climate-orbiter/in-depth/
Galileo Orbiter | 9/21/2003
Failed to reduce data rate after communication was lost. Extended mission was a successes until decommissioned into Jupiter.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1989-084B
https://www.jpl.nasa.gov/missions/galileo
https://solarsystem.nasa.gov/missions/galileo-probe/in-depth/
Mars Global Surveyor | 11/21/2006
Preliminary indication of unknown solar panel failure resulted in insufficient power generation. Unrecoverable when safe mode was engaged after contact was lost.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1996-062A
https://solarsystem.nasa.gov/missions/mars-global-surveyor/in-depth/
STEREO-B | 10/1/2014
Communication was lost and ground observation indicated the spacecraft was spinning uncontrollably. Attempts to recover resulted in increasing spin due to the frozen prop valve. Declared lost on 10/17/2018.
Source(s):
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2006-047B
DESCENT
IMPACT
STATIC
ROVING
RETURN
Site Last Updated: 10/20/2021
NASA Official: Gail Skowron Infographic Editor: Faisal Ali Technical Questions? Click here