Английская Википедия:(143649) 2003 QQ47
Шаблон:Use dmy dates Шаблон:Infobox planet
Шаблон:Mp, provisionally designated: Шаблон:Mp, is a kilometer-sized asteroid and synchronous binary system, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It became briefly notable upon its discovery in late August 2003, when media outlets played up a very preliminary report that it had a 1 in 250,000 chance of impacting into Earth on 21 March 2014.[1] The discovery of a companion, approximately Шаблон:Convert in diameter, was announced in September 2021.
Description
Шаблон:Mp was discovered on 24 August 2003.[2] It was added to the Sentry Risk Table on 30 August 2003.[1] By 31 August 2003 (with an observation arc of 7 days) the odds of an impact on 21 March 2014 were already reduced to 1 in 1.7 million.[3] The asteroid was removed from the Sentry Risk Table on 14 September 2003, indicating there is no risk of an impact by it in the next 100 years.[4]
Шаблон:Mp safely passed within Шаблон:Convert of Earth on 26 March 2014.[5][6] With an observation arc of 10 years and an orbital uncertainty of 0, its orbit and future close approaches are well-determined.[5]
Preliminary reports
On 3 September 2003 a NASA press release wrote, Шаблон:Blockquote
Шаблон:Mp has a diameter of approximately 1.24 km, and a mass of approximately Шаблон:ValШаблон:Citation needed. If it were to hit the Earth, it would be a major event, with an energy of approximately 350,000 megatons of TNT (1.5 ZJ), enough to cause global damage.
Sara Russell, a meteorite researcher at London's Natural History Museum, told the BBC on 2 September 2003 that she was not worried that Шаблон:Mp would be a danger; "The odds are very, very low ... We have to keep some kind of perspective", she said.[7]
As a result of the press coverage of asteroids such as Шаблон:Mp, astronomers are now planning to re-word the Torino scale, or to phase it out completely in favour of a scale that is less likely to generate false alarms that may reduce public confidence in genuine alerts.
Binary system
A minor-planet moon, provisionally designated Шаблон:Mp, was first detected on 29 August 2021, by Petr Pravec, Peter Kušnirák, Kamil Hornoch, and others using photometric data from ESO's La Silla Observatory in Chile.[8] The discovery was announced on 17 September 2021. The secondary measures a third the size of its primary (Ds/Dp-ratio of 0.33), resulting in a mean-diameter of approximately 310 meters. It is estimated to be tidally locked, orbiting Шаблон:Convert from the primary every 13.065 hours. The primary has a rotation period of Шаблон:Val hours and a derived diameter of Шаблон:Val kilometers, for a resulting effective diameter (system) of Шаблон:Val kilometers.[8]
In fiction
- The asteroid was mentioned in Anonymous Rex (Les Reptilians) (2004) as the asteroid which the dinosaurs were counting on to destroy human civilization.
- The Korean drama My Love from the Star also mentions it as the asteroid that will allow Do Min-joon to travel back to his home planet.
References
External links
- No, Asteroid 2003 QQ47 is NOT Going to Hit the Earth Next Week (Phil Plait 15 March 2014)
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
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