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NEODyS is an Italian service that provides information on Near Earth Objects with a Web-based interface. It is based on a continually and (almost) automatically maintained database of near earth asteroid orbits. This site provides a number of services to the NEO community. The main service is an impact monitoring system (CLOMON2) of all near-Earth asteroids covering a period until the year 2100.
(292220) 2006 SU49, provisional designation 2006 SU49, is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group that had a small chance of impacting Earth in 2029.
(276033) 2002 AJ129, provisional designation 2002 AJ129, is a Mercury-crossing asteroid. It has the ninth-smallest perihelion of all numbered asteroids, after asteroids such as 2000 BD19, 2004 UL, and 2008 XM. It makes close approaches to all of the inner planets and asteroid 4 Vesta. The asteroid is estimated to be between 0.5–1.2 kilometers (0.3–0.7 mi) across. In January 2018 there was much media hype about this asteroid being classified as a potentially hazardous asteroid, although there is no known threat of an impact for hundreds if not thousands of years. The media has compared the size of the asteroid to the Burj Khalifa in Dubai.
2002 JE9 (also written 2002 JE9) is an Apollo near-Earth asteroid and potentially hazardous object. It has a well determined orbit with an observation arc of 10 years and an Uncertainty Parameter of 1. It was removed from the Sentry Risk Table on 10 May 2002. 2002 JE9 was discovered on 6 May 2002 by the Lincoln Near-Earth Asteroid Research (LINEAR) project using a 1.0-metre (39 in) Reflecting telescope; at the time of discovery, the asteroid possessed an apparent magnitude of 19.1.
2003 BR47 is a sub-kilometer asteroid classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It was discovered on 31 January 2003 by the LINEAR program. As of 19 March 2013, its orbit is based on 170 observations spanning a data-arc of 939 days.
2006 JY26 is a near-Earth object and potentially hazardous asteroid that is also horseshoe companion to the Earth like 3753 Cruithne.
2008 CK70 (also written 2008 CK70) is an Apollo near-Earth asteroid. In 2013 it had the 7th highest impact threat on the Palermo Technical Impact Hazard Scale. It was discovered on 9 February 2008 by Lincoln Near-Earth Asteroid Research (LINEAR) at an apparent magnitude of 19 using a 1.0-meter (39 in) reflecting telescope. It has an estimated diameter of 31 meters (102 ft) and is not large enough to qualify as a potentially hazardous object. Ten precovery images from January 2008 have been located. It was removed from the Sentry Risk Table on 21 December 2013. It may be possible to recover the asteroid in late September 2017, but it will have an apparent magnitude of about 22.
2012 FN is an Apollo asteroid and a near-Earth object that has a 1 in 4 billion chance of impacting Earth on 7 March 2113. It is estimated to be 5 meters in diameter, which means that it poses no threat if it impacts Earth. An impact would have the kinetic energy of about 3 kt of TNT, and would probably result in an air burst in the upper atmosphere. It is the least threatening asteroid listed on the Sentry Risk Table. The very short observation arc of only 3 hours results in a very poorly constrained orbit, and it could just as easily be 2 AU from Earth on 7 March 2113.
2007 VE191 is a sub-kilometer asteroid, classified as near-Earth asteroid of the Apollo group that was listed on the Sentry Risk Table.
2015 AZ43 (also written 2015 AZ43) is an Apollo near-Earth asteroid roughly 70 meters in diameter. On 10 February 2015 with a 29.5-day observation arc, it showed a 1 in 5,880 chance of impacting Earth on 27 February 2107. However, the NEODyS nominal best-fit orbit shows that 2015 AZ43 will be 2.8 AU (420,000,000 km; 260,000,000 mi) from Earth on 27 February 2107. A (non-impacting) Earth close approach in 2056 makes future trajectories diverge. It was removed from the JPL Sentry Risk Table on 23 February 2015 using JPL solution 26 with an observation arc of 40 days that included radar data.
2013 TX68 is an Apollo asteroid and near-Earth object discovered on 6 October 2013 by the Catalina Sky Survey, during which it was near a close approach of 5.4 Lunar distances (LD) from the Earth. The asteroid only has a 10-day observation arc which makes long-term predictions of its position less certain. It was observed for three days as it approached Earth in the night sky starting with the sixth of October, 2013. Then it became unobservable by being between the Earth and the Sun, then not recovered due to its small size and dimness. Precovery images by Pan-STARRS from 29 September 2013 were announced on 11 February 2016 that extended the observation arc to 10 days. It was removed from the Sentry Risk Table on 11 February 2016, so there is no risk of impact from this object for the next hundred years or more. The asteroid was last observed on 9 October 2013.
2018 LF16 is a small near-Earth asteroid of the Amor group, first observed by astronomers with the Pan-STARRS survey at Haleakala Observatory on 14 June 2018. Based on limited observations, early estimates of its size of 213 m (699 ft) would make it extremely destructive if it collided with Earth, but predicted orbits make a collision unlikely.
2006 QV89 (also written 2006 QV89) is an Apollo near-Earth asteroid roughly 30 meters (100 feet) in diameter. It was discovered on 29 August 2006 when the asteroid was about 0.03 AU (4,500,000 km; 2,800,000 mi) from Earth and had a solar elongation of 150 degrees.
2007 FT3 (also written 2007 FT3) is a lost asteroid with a short observation arc of 1.2 days. It has a poorly constrained orbit and has not been seen since 2007. It was first observed on 20 March 2007 when the asteroid was estimated to be 0.19±0.01 AU from Earth and had a solar elongation of 107 degrees.
1979 XB is a lost asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It has a short observation arc of 3.9 days and is roughly estimated to be 660 meters in diameter. The unnumbered minor planet has a poorly constrained orbit and has not been observed in 40 years. It has been listed on the Sentry Risk Table since the list started in 2002.
2015 ME131 (also written 2015 ME131) is a lost asteroid and a Near-Earth object (NEO). It is an Atira asteroid, which is by far the smallest group of near-Earth objects. This makes it an interior-Earth object (IEO), meaning that it has an orbit entirely confined within Earth's orbit. Because it has a short observation arc of 1.8 days, and has not been seen since 2015, it has an orbit that is only roughly calculated. It was first observed on June 23, 2015, when the asteroid was more than 1 AU from Earth and had a solar elongation of 68 degrees.
2016 NL56 (also written 2016 NL56) is a Near-Earth Object (NEO) and a Potentially Hazardous Asteroid (PHA), meaning that it has an orbit that can make close approaches to the Earth and large enough to cause significant regional damage in the event of impact. It is an Apollo asteroid, meaning that it is an Earth-crossing asteroid that has an orbit larger than the orbit of the Earth. It was first observed on July 12, 2016, when the asteroid was more than 1 AU from Earth and had a solar elongation of 163 degrees.
2017 QC36 is a near-Earth object and a potentially hazardous asteroid of the Aten group, It measures approximately 200 meters (660 feet) in diameter and was briefly observed by the Wide-field Infrared Survey Explorer on 18 August 2017 before it became a lost asteroid on the following day. As of 2020 the object has not been recovered.
2017 DB120 (also written 2017 DB120) is a near-Earth object, meaning that it has an orbit which brings it into proximity with Earth. It is an Amor asteroid, meaning that its orbit does not cross Earth's orbit, but its perihelion is close to, but greater than, the aphelion of Earth. It was first observed on February 25, 2017, when the asteroid was less than 1 AU from Earth and had a solar elongation of 169 degrees.
2017 SG33 (also written 2017 SG33) is a near-Earth object, meaning that it has an orbit which brings it into proximity with Earth. It is an Amor asteroid, meaning that its orbit does not cross Earth's orbit, but its perihelion is close to, but greater than, the aphelion of Earth. It was first observed on 25 September 2017, when the asteroid was less than 1 AU from Earth and had a solar elongation of 169°.
References
- 1 2 3 4 "IAU Minor Planet Center 2017 MZ8". International Astronomical Union . Retrieved 5 September 2020.
- 1 2 3 4 5 "ESA space situational awareness 2017MZ8". European Space Agency . Retrieved 5 September 2020.
- 1 2 3 "JPL Small-Body Database Browser (2017 MZ8)". Jet Propulsion Laboratory . Retrieved 5 September 2020.
- 1 2 3 4 "Sentry: Earth Impact Monitoring - Object Details 2017 MZ8". Jet Propulsion Laboratory . Retrieved 5 September 2020.
- ↑ "JPL HORIZONS Web-Interface (2017 MZ8)". Jet Propulsion Laboratory . Retrieved 5 September 2020.
- ↑ "NEODyS-2 Risk List". SpaceDys . Retrieved 5 September 2020.
- ↑ "Sentry: Earth Impact Monitoring - Impact Risk Data". Jet Propulsion Laboratory . Retrieved 5 September 2020.
- ↑ "NEODyS-2 - Near Earth Objects - Dynamic Site - 2017MZ8 - Close Approaches". SpaceDys . Retrieved 5 September 2020.