(388188) 2006 DP14

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(388188) 2006 DP14
Discovery [1]
Discovered by LINEAR
Discovery site Lincoln Lab's ETS
Discovery date 23 February 2006
Designations
MPC designation (388188) 2006 DP14
2006 DP14
Apollo · NEO · PHA[1][2]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 10.10 yr (3,690 days)
Aphelion 2.4262 AU
Perihelion 0.3053 AU
1.3657 AU
Eccentricity 0.7765
1.60 yr (583 days)
110.82°
0° 37m 3s / day
Inclination 11.785°
317.26°
59.218°
Earth MOID 0.0159 AU · 6.2 LD
Physical characteristics
Dimensions 0.4 km[3]
0.493 km (calculated)[4]
5.77±0.01 h[5]
5.78±0.02 h[6]
6 h[3]
0.20 (assumed)[4]
S[4]
18.80±0.02[6] · 18.9[1][4]

(388188) 2006 DP14 is a highly eccentric, sub-kilometer sized and peanut-shaped asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group.

It was discovered by LINEAR at Lincoln Lab's ETS in Socorro, New Mexico, on 23 February 2006,[2] on 10 February 2014, it passed 6.2 lunar distances from Earth.[3]

Classification and orbit[edit]

2006 DP14 orbits the Sun at a distance of 0.3–2.4 AU once every 1 years and 7 months (583 days). Its orbit has an eccentricity of 0.78 and an inclination of 12° with respect to the ecliptic.[1] As no precoveries were taken, the body's observation arc begins with its discovery observation in 2006.[2]

The asteroid has an Earth minimum orbit intersection distance of 0.0159 AU (2,380,000 km),[1] which corresponds to the close approach distance of 6.2 lunar distances observed in February 2014.

Physical characteristics[edit]

Radar-imaging of 2006 DP14

2006 DP14 is an assumed stony S-type asteroid.[4]

Diameter, shape and albedo[edit]

On the night of 11 February 2014, NASA scientists conducted a radar imaging session using the 70-meter dish at Goldstone Observatory,[3] these observations, using delay-Doppler radar imaging, revealed a 400×200 meters peanut-like shape,[3] while the Collaborative Asteroid Lightcurve Link calculates a diameter of almost 500 meters, based on an assumed standard albedo for stony asteroids of 0.20 and an absolute magnitude of 18.9.[4]

Amateur and professional astronomers helped track 2006 DP14 in the preceding days, so they would know just where to point the large antenna.[3]

Rotation period[edit]

Goldstone's radiometric observations also gave a rotation period of approximately 6 hours.[3] Photometric follow-up observations led to two light-curves that gave a refined period of 5.77 and 5.78 hours with a high brightness variation of 1.05 and 0.9, respectively (U=3/3).[5][6]

Naming[edit]

As of 2017, this minor planet remains unnamed.[2]

References[edit]

  1. ^ a b c d e f "JPL Small-Body Database Browser: 388188 (2006 DP14)" (2016-04-01 last obs.). Jet Propulsion Laboratory. Retrieved 2 June 2017. 
  2. ^ a b c d "388188 (2006 DP14)". Minor Planet Center. Retrieved 9 September 2016. 
  3. ^ a b c d e f g "Radar Images of near-Earth Asteroid 2006 DP14". Jet Propulsion Laboratory. 25 February 2014. Retrieved 9 September 2016. 
  4. ^ a b c d e f "LCDB Data for (388188)". Asteroid Lightcurve Database (LCDB). Retrieved 9 September 2016. 
  5. ^ a b Warner, Brian D. (July 2014). "Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2014 January-March". The Minor Planet Bulletin. 41 (3): 157–168. Bibcode:2014MPBu...41..157W. ISSN 1052-8091. Retrieved 9 September 2016. 
  6. ^ a b c Hicks, M.; Ebelhar, S. (February 2014). "Broad-band Photometry of the Potentially Hazardous Asteroid 2006 DP14". The Astronomer's Telegram (5928). Bibcode:2014ATel.5928....1H. Retrieved 9 September 2016. 

External links[edit]