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Asiago-DLR Asteroid Survey: 2001 2002 Asteroid Terrestrial-impact Last Alert System (ATLAS) 2015 Beijing Schmidt CCD Asteroid Program: 1996 2002 Discovered more than 1000 minor planets [1] Campo Imperatore Near-Earth Object Survey: 2001 Catalina Sky Survey: 1998 About 1000 objects per year EURONEAR: 2006 [2] International Near-Earth Asteroid Survey
The asteroid with the greatest chance of impacting Earth in 2025 is 2009 VA (6-meters in diameter) with less than a 1-day observation arc. [8] It has a 1:48,000 chance of impact on 06 November 2023, but is expected to be around 0.3 AU (45 million km ) from Earth on that date with uncertainty region of ± 900 million km. [ 10 ]
2018 AH, largest asteroid to pass so close to Earth since 1971 on 2018-01-02. A106fgF, a 2–5 m asteroid which either passed extremely close or impacted Earth on 2018-01-22. 2018 RC, near earth asteroid on 2018-09-03 (notable because it was discovered more than a day prior to closest approach on 2018-09-09). [44]
Asteroid 2024 YR4 has a 2.8% to 3.1% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.
An asteroid has a small chance of hitting Earth less than eight years from now, and astronomers are enlisting the help of NASA's James Webb Space Telescope to study it.
The asteroid's provisional designation as a minor planet, "2024 YR 4", was assigned by the Minor Planet Center when its discovery was announced on 27 December 2024. [2] The first letter, "Y", indicates that the asteroid was discovered in the second half-month of December 2024 (16 to 31 December), and "R 4" indicates that it was the 117th provisional designation to be assigned in that half-month.
Jet Propulsion Laboratory scientists Lance Benner, Paul Chodas and Mark Haynes are studying the 1,100-foot wide asteroid Apophis, which will come within viewing distance of Earth on April 13, 2029.
It focuses principally on satellites in the 15,000 to 40,000 km (9,300 to 24,900 mi) range, [19] such as geostationary communications satellites, which are difficult to track via ground-based radar. These experiments include submitting tracking data to the Space Surveillance Network , as part of Canada's role in NORAD .