367943 Duende
 Diagram 2012 DA14 melewati Bumi pada 15 Februari 2013 | |
| Penemuan[1] | |
|---|---|
| Ditemukan oleh | Observatorium OAM, La Sagra (J75) Reflektor 0,45-m |
| Tanggal penemuan | 23 Februari 2012 |
| Penamaan | |
Penamaan | 2012 DA14 |
| Pra-2013: Apollo NEO[2] Setelah 15 Feb 2013: Aten[2] | |
| Ciri-ciri orbit[3] | |
| Epos 30 Sep 2012 | |
| Aphelion | 1,110 SA (Q) |
| Perihelion | 0,8935 SA (q) |
| 1,001 SA (a) | |
| Eksentrisitas | 0,1081 |
| 366,2 hari | |
| 299,9° (M) | |
| Inklinasi | 10,33° |
| 147,2° | |
| 270,0° | |
| Ciri-ciri fisik | |
| Dimensi | ~50 meter (160 ft)[4] |
| ~6 jam[5] | |
Pola spektrum | Tipe L[5] |
| 7,2 (puncak 2013)[6] | |
| 24,1[3] | |
2012 DA14 adalah astroid dekat Bumi dengan diameter sebesar 50m dan massa sebesar 190.000 ton metrik.[4] Asteroid ini ditemukan pada 23 Februari 2012 oleh Observatorio Astronómico de La Sagra di Granada, Spanyol,[1] tujuh hari setelah melewati Bumi dari jarak 0,0174 SA (2.600.000 km; 1.620.000 mi).[3] Berdasarkan perhitungan, pada 15 Februari 2013, jarak antara asteroid ini dengan Bumi adalah 0,0002276 SA (34.050 km; 21.160 mi).[3] Asteroid ini melewati Bumi dari jarak 27.700 kilometer.[2] Ini merupakan rekor untuk objek dengan ukuran seperti asteroid ini.[2]
Referensi
- ^ a b "MPEC 2012-D51 : 2012 DA14". IAU Minor Planet Center. 2012-02-24. Diakses tanggal 2012-03-05. (K12D14A)
- ^ a b c d Paul Chodas and Don Yeomans (February 1, 2013). "Asteroid 2012 DA14 To Pass Very Close to the Earth on February 15, 2013". NASA/JPL Near-Earth Object Program Office. Diarsipkan dari asli tanggal 2015-04-06. Diakses tanggal 2013-02-01.
- ^ a b c d "JPL Close-Approach Data: (2012 DA14)". 2013-02-13. Diakses tanggal 2013-02-14.
- ^ a b "Earth Impact Risk Summary: 2012 DA14". NASA/JPL Near-Earth Object Program Office. Diarsipkan dari asli tanggal 2013-02-13. Diakses tanggal 2013-02-14.
- ^ a b Dr. Lance A. M. Benner (2013-01-13). "2012 DA14 Goldstone Radar Observations Planning". NASA/JPL Asteroid Radar Research. Diakses tanggal 2013-01-15.
- ^ "2012 DA14 Ephemerides for 15 February 2013". NEODyS (Near Earth Objects - Dynamic Site). Diakses tanggal 2013-01-10.
Pranala luar
Wikimedia Commons memiliki media mengenai 367943 Duende.
- Asteroid 2012 DA14 to Safely Pass Earth (JPLnews video Feb 4, 2013)
- Guide to Asteroid 2012 DA14 Super Close Approach (Bruce Betts 2013/02/04 includes video)
- Physical characteristics of 2012 DA14, nasa.gov
- http://neo.jpl.nasa.gov/risk/2012da14.html Diarsipkan 2013-02-13 di Wayback Machine., nasa.gov
- http://www.clayobservatory.org/press-releases/student-led-team-to-offer-real-time-video-of-asteroid-2012-da14/ Diarsipkan 2013-04-14 di Archive.is (Clay Center Observatory, beginning 6 p.m. EST on Feb. 15th)
- No, asteroid 2012 DA14 will not hit us next year Diarsipkan 2012-03-06 di Wayback Machine., Bad Astronomy blog (Phil Plait, March 4, 2012)
- Cool animation showing asteroid DA 14′s near miss next year Diarsipkan 2012-03-11 di Wayback Machine., Bad Astronomy blog (Phil Plait, March 8, 2012)
- 2012 DA14 sparks asteroid fever (Astro Bob, March 6, 2012)
- Near-miss asteroid will return next year Diarsipkan 2012-06-15 di Wayback Machine. (ESA – 15 March 2012)
- http://www.oam.es/Asteroid_2012DA14.htm Diarsipkan 2012-03-24 di Wayback Machine. (Jaime Nomen and team – La Sagra Sky Survey) - includes animated discovery images
- 2012 DA14 orbit calculation with a 3 day observation arc (mpml : February 26, 2012)
- Meteoroid hazard to satellites comes overwhelmingly from the marbles, not the mountains (mpml : March 26, 2012)
- Table of next close approaches (Sormano Astronomical Observatory)
- SAEL - Small Asteroid Encounter List (Sormano Astronomical Observatory)
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