OSIRIS-REx
Artist's rendering of the OSIRIS-REx spacecraft
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| Names | Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer | ||||||||||||||
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| Mission type | Asteroid sample return | ||||||||||||||
| Operator | NASA | ||||||||||||||
| COSPAR ID | 2016-055A | ||||||||||||||
| SATCAT № | 41757 | ||||||||||||||
| Website | asteroidmission |
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| Mission duration | Planned: 7 years 505 days at asteroid Elapsed: 4 months, 7 days, 3 hours |
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| Spacecraft properties | |||||||||||||||
| Manufacturer | Lockheed Martin | ||||||||||||||
| Launch mass | 2,110 kg (4,650 lb) | ||||||||||||||
| Dry mass | 880 kg (1,940 lb) | ||||||||||||||
| Dimensions | 2.44 × 2.44 × 3.15 m (8 × 8 × 10.33 ft) | ||||||||||||||
| Power | 1,226 to 3,000 W | ||||||||||||||
| Start of mission | |||||||||||||||
| Launch date | 8 September 2016, 23:05 UTC | ||||||||||||||
| Rocket | Atlas V 411, AV-067 | ||||||||||||||
| Launch site | Cape Canaveral SLC-41 | ||||||||||||||
| Contractor | United Launch Alliance | ||||||||||||||
| End of mission | |||||||||||||||
| Landing date | Planned: 24 September 2023, 15:00 UTC | ||||||||||||||
| Landing site | Utah Test and Training Range | ||||||||||||||
| Flyby of Earth | |||||||||||||||
| Closest approach | 22 September 2017 | ||||||||||||||
| 101955 Bennu orbiter | |||||||||||||||
| Orbital insertion | August 2018 | ||||||||||||||
| Departed orbit | March 2021 | ||||||||||||||
| Sample mass | 0.1–2.0 kg (0.13–4.4 lb) | ||||||||||||||
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| Instruments | |
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| OCAMS | OSIRIS-REx Camera Suite |
| OLA | OSIRIS-REx Laser Altimeter |
| OTES | OSIRIS-REx Thermal Emission Spectrometer |
| OVIRS | OSIRIS-REx Visible and Infrared Spectrometer |
| REXIS | Regolith X-ray Imaging Spectrometer |
| TAGSAM | Touch-And-Go Sample Acquisition Mechanism |
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The Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) is a NASA asteroid study and sample return mission. The launch occurred on 8 September 2016. Its mission is to study asteroid 101955 Bennu, a carbonaceous asteroid, and return a sample to Earth in 2023 for detailed analysis. The material returned is expected to enable scientists to learn more about the formation and evolution of the Solar System, its initial stages of planet formation, and the source of organic compounds that led to the formation of life on Earth. If successful, OSIRIS-REx will be the first US spacecraft to return samples from an asteroid.
The cost of the mission will be approximately US$800 million not including the Atlas V launch vehicle, which is about US$183.5 million. It is the third planetary science mission selected in the New Frontiers program, after Juno and New Horizons. The Principal Investigator is Dante Lauretta from the University of Arizona.
Overall management, engineering and navigation for the mission is provided by NASA's Goddard Space Flight Center, while the University of Arizona's Lunar and Planetary Laboratory provides principle science operations and Lockheed Martin Space Systems built the spacecraft and provides mission operations. The science team includes members from the United States, Canada, France, Germany, United Kingdom, and Italy.
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