(29075) 1950 DA - Wikipedia
(29075) 1950 DA (provisional designation 1950 DA) is a risk-listed asteroid, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 1.3 kilometers (0.81 miles) in diameter. [4] It once had the highest known probability of impacting Earth. [11]
29075 (1950 DA) Analyses, 2001-2007 - NASA
Asteroid (29075) 1950 DA was discovered on 23 February 1950. It was observed for 17 days and then faded from view for half a century. Then, an object discovered on 31 December 2000 was recognized as being the long-lost 1950 DA.
Asteroid 29075 (1950 DA) | Space Reference
29075 (1950 DA) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1950 DA as a "Potentially Hazardous Asteroid" due to its predicted close pass (es) with Earth.
Good news! Massive asteroid 1950 DA isn't as big of a threat as …
2022年3月30日 · Asteroid 29075 (1950 DA) is a 1.3-kilometre wide space rock first spotted on February 23, 1950. However, due to the timing of its orbit, astronomers lost track of it after that, for just over...
In this paper we perform an assessment of the 2880 Earth impact risk for Asteroid (29075) 1950 DA. To obtain reliable predictions we analyze the contribution of the observational dataset and the astrometric treatment, the numerical error in the long-term integration, and the different accelerations acting on the asteroid.
Impact threat analysis update completed for 1950 DA - NEO
2022年3月29日 · (29075) 1950 DA is a kilometre-size near-Earth asteroid discovered on 22 February 1950, observed at that time for 18 days and then lost for 50 years. In January 2001, thanks to an identification with another asteroid discovered in December 2000, (29075) 1950 DA was recovered and observed again.
29075 (1950 DA) - Animations/Simulations - NASA
Repetitive, periodic tugging on the asteroid by Earth’s gravity keeps the 1950 DA uncertainty cloud oscillating around the nominal position in the direction of motion, instead of simply spreading out over time. Animation from J. Giorgini (JPL).
Updated Calculations Refine the Impact Probability for (29075) 1950 DA
2022年3月29日 · (29075) 1950 DA is a kilometer-sized asteroid that will make a close approach to Earth in 2880 and, because of the corresponding impact probability and size, has ranked at the top of the Sentry risk list since 2014.
Assessment of the 2880 impact threat from Asteroid (29075) 1950 DA
2014年2月1日 · We found a 5 × 10-4 probability for an Earth impact of Asteroid (29075) 1950 DA in March 2880. The corresponding Palermo Scale is −0.56, which is the highest among known possible asteroid impacts.
Cohesive forces prevent the rotational breakup of rubble-pile ... - Nature
2014年8月13日 · Here we report that the kilometre-sized asteroid (29075) 1950 DA (ref. 8) is a rubble pile that is rotating faster than is allowed by gravity and friction.