367943 Duende

367943 Duende
Goldstone radar collage of Duende on 15–16 February 2013
Discovery [1][2]
Discovered byOAM
Discovery siteLa Sagra Obs.
Discovery date23 February 2012
Designations
(367943) Duende
Named after
Duende
(Iberian/Filipino mythology)[1]
2012 DA14
Orbital characteristics [3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc364 days
Aphelion0.9916 AU
Perihelion0.8289 AU
0.9103 AU
Eccentricity0.0894
0.87 yr (317 days)
113.74°
1° 8m 5.64s / day
Inclination11.609°
146.96°
195.60°
Earth MOID9.52648×10−5 AU (0.037 LD)
Physical characteristics
Dimensions20 m × 40 m (elongated)[5][6]
  • 0.20 (assumed)[9]
  • 0.44±0.20[7]
7.2 (2013 peak)[14]

367943 Duende (provisional designation 2012 DA14) is a micro-asteroid and a near-Earth object of the Aten and Atira group, approximately 30 meters (98 ft) in diameter. It was discovered by astronomers of the Astronomical Observatory of Mallorca at its robotic La Sagra Observatory in 2012, and named for the duende, a goblin-like creature from Iberian and Filipino mythology and folklore.[1] Duende is likely an uncommon L-type asteroid and significantly elongated. For an asteroid of its size, it has a relatively long rotation period of 9.485 hours.[9]

On 15 February 2013, Duende passed at a record distance of 27,700 km (17,200 mi) or 4.3 Earth radii from Earth's surface.[4] Due to its close passage, its orbit was perturbed significantly enough that it changed from an Apollo asteroid to an Aten asteroid. Duende's passage also coincided with the completely unrelated Chelyabinsk meteor, which entered Earth's atmosphere above Russia just 16 hours earlier.[15][16][17]

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  2. ^ Cite error: The named reference MPEC was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference NASA-news-177 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Goldstone was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference MPC-twitter was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference de-Leon-2014 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference NASA-risk-archive was invoked but never defined (see the help page).
  9. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Gary-2013a was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Elenin-2013 was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference Terai-2014 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Urakawa-2013 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference NEODyS2013 was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference news130301 was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference meteor was invoked but never defined (see the help page).
  17. ^ Cite error: The named reference ESA was invoked but never defined (see the help page).


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