This article is about the impactor mission. For the Earth orbiter, see DART (satellite).
Double Asteroid Redirection Test
Diagram of the DART spacecraft striking Dimorphos
Names
DART
Mission type
Planetary defense mission
Operator
NASA / APL
COSPAR ID
2021-110A
SATCAT no.
49497
Website
dart.jhuapl.edu/Mission
Mission duration
10 months and 1 day
Spacecraft properties
Spacecraft
DART impactor
LICIACube CubeSat
Manufacturer
Applied Physics Laboratory of Johns Hopkins University
Launch mass
DART: 610 kilograms (1,340 lb)[1]
LICIACube: 14 kilograms (31 lb)
Dimensions
DART: 1.8 × 1.9 × 2.6 metres (5 ft 11 in × 6 ft 3 in × 8 ft 6 in)
ROSA: 8.5 × 2.4 metres (27.9 × 7.9 ft) (each)
Power
6.6 kW
Start of mission
Launch date
24 November 2021, 06:21:02 UTC[1]
Rocket
Falcon 9 Block 5, B1063.3
Launch site
Vandenberg, SLC-4E
Contractor
SpaceX
Dimorphos impactor
Impact date
26 September 2022, 23:14 UTC[2][3]
Flyby of Didymos system
Spacecraft component
LICIACube (deployed from DART)
Closest approach
26 September 2022, ~23:17 UTC
Distance
56.7 kilometres (35.2 mi)
Instruments
Didymos Reconnaissance and Asteroid Camera for Optical navigation (DRACO)
Solar System Exploration program
Europa Clipper →
Double Asteroid Redirection Test (DART) was a NASA space mission aimed at testing a method of planetary defense against near-Earth objects (NEOs).[4][5] It was designed to assess how much a spacecraft impact deflects an asteroid through its transfer of momentum when hitting the asteroid head-on.[6] The selected target asteroid, Dimorphos, is a minor-planet moon of the asteroid Didymos; neither asteroid poses an impact threat to Earth, but their joint characteristics made them an ideal benchmarking target. Launched on 24 November 2021, the DART spacecraft successfully collided with Dimorphos on 26 September 2022 at 23:14 UTC about 11 million kilometers (0.074 astronomical units; 29 lunar distances; 6.8 million miles) from Earth. The collision shortened Dimorphos' orbit by 32 minutes, greatly in excess of the pre-defined success threshold of 73 seconds.[7][8][9] DART's success in deflecting Dimorphos was due to the momentum transfer associated with the recoil of the ejected debris, which was substantially larger than that caused by the impact itself.[10][clarification needed]
DART was a joint project between NASA and the Johns Hopkins Applied Physics Laboratory. The project was funded through NASA's Planetary Defense Coordination Office, managed by NASA's Planetary Missions Program Office at the Marshall Space Flight Center, and several NASA laboratories and offices provided technical support. The Italian Space Agency contributed LICIACube, a CubeSat which photographed the impact event, and other international partners, such as the European Space Agency (ESA), and Japan Aerospace Exploration Agency (JAXA), are contributing to related or subsequent projects.[11]
^ ab"DART". NASA Space Science Data Coordinated Archive. Retrieved 9 February 2023.
^Cite error: The named reference PressKit was invoked but never defined (see the help page).
^Cite error: The named reference spacecom-impact-time was invoked but never defined (see the help page).
^Chang, Kenneth (27 September 2022). "What NASA's Crash into an Asteroid Looks Like – Astronomers on Earth – and a shoebox-size Italian spacecraft called LICIACube – captured the DART mission's successful strike on Dimorphos". The New York Times. Retrieved 28 September 2022.
^Chang, Kenneth (25 September 2022). "NASA Is About to Crash into an Asteroid. Here's How to Watch – The DART mission has been flying to its target since launching last year. On Monday night, it will connect". The New York Times. Retrieved 26 September 2022.
^"NASA's DART Mission Hits Asteroid in First-Ever Planetary Defense Test". NASA. 27 September 2022.
^Chang, Kenneth (26 September 2022). "NASA Smashes into an Asteroid, Completing a Mission to Save a Future Day". The New York Times. Retrieved 27 September 2022.
^Bardan, Roxana (11 October 2022). "NASA Confirms DART Mission Impact Changed Asteroid's Motion in Space". NASA. Retrieved 11 October 2022.
^Strickland, Ashley (11 October 2022). "The DART mission successfully changed the motion of an asteroid". CNN. Retrieved 11 October 2022.
^Cite error: The named reference Nature March2023 was invoked but never defined (see the help page).
^Keeter, Bill (7 September 2022). "DART Sets Sights on Asteroid Target". NASA. Retrieved 10 September 2022.; "SpaceX ready for first launch with NASA interplanetary mission". Spaceflight Now. 22 November 2021. Retrieved 24 November 2021.; "DART Launch Moves to Secondary Window". NASA. 17 February 2021. Retrieved 24 November 2021. This article incorporates text from this source, which is in the public domain.; "Live: NASA to crash spacecraft into asteroid in trial to protect Earth from collisions". ABC News. 26 September 2022. Retrieved 26 September 2022.
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Global Information
This article incorporates text from this source, which is in the public domain.; "Live: NASA to crash spacecraft into asteroid in trial to protect Earth from collisions". ABC News. 26 September 2022. Retrieved 26 September 2022.
