2008 TC3 (Catalina Sky Survey temporary designation 8TA9D69) was an 80-tonne (80-long-ton; 90-short-ton), 4.1-meter (13 ft) diameter asteroid [2] that entered Earth's atmosphere on October 7, 2008. [3] . It exploded at an estimated 37 kilometers (23 mi) above the Nubian Desert in Sudan.

2008年11月4日 · At 6:39 UT (UT = GMT) on the morning of October 6, 2008, Richard Kowalski, at the Catalina Sky Survey, discovered this small near-Earth asteroid using the Mt. Lemmon 1.5 meter aperture telescope near Tucson, Arizona.

2009年3月26日 · On 6 October 2008, a small asteroid was discovered with a flat reflectance spectrum in the 554–995 nm wavelength range, and designated 2008 TC 3 (refs 4–6). It subsequently hit the Earth....

2008 TC3 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2008 TC3 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of …

2008年10月7日 · Eric Allen observed asteroid 2008 TC3 as it approached its impact on Earth on October 7, 2008 at 01:32 and 01:42 UTC. The fast motion of TC3 makes it stretch out as a dashed line in these two photos, which is made of several …

2009年3月26日 · On 6 October 2008, a small asteroid was discovered with a flat reflectance spectrum in the 554-995 nm wavelength range, and designated 2008 TC (3) (refs 4-6). It subsequently hit the Earth. Because it exploded at 37 km altitude, no macroscopic fragments were expected to survive.

Survey, the Minor Planet Center announced the discovery of 2008 TC 3 and reported that the nominal trajectory corresponded to an Earth impact on 2008 Oct 7, only 20 hours after discovery (MPEC 2008-T50). The absolute magnitude H= 30:4 of the asteroid suggested a …

2008 TC3 was the first object detected in space prior to impacting the Earth. Discovery occurred at 06:39 UTC on 7 October 2008 by the Catalina Sky Survey and the meteoroid entered the atmosphere over Sudan 20 hours after the first detection.

2023年4月3日 · A topical session on the impact and recovery of 2008 TC3 was held at the DPS meeting in Puerto Rico on October 4-9, 2009, during the one-year aniversary of the fall. [ Program Topical Session ]; [ Abstracts ]

Project website for the Almahata Sitta consortium of researchers investigating the recovered meteorites from the impact of asteroid 2008 TC3.