(6178) 1986 DA

(6178) 1986 DA
Discovery[1]
Discovered byM. Kizawa
Discovery siteShizuoka Obs.
Discovery date16 February 1986
Designations
(6178) 1986 DA
1986 DA
Amor · NEO[2]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc38.03 yr (13,890 days)
Aphelion4.4648 AU
Perihelion1.1805 AU
2.8226 AU
Eccentricity0.5818
4.74 yr (1,732 days)
233.20°
0° 12m 28.08s / day
Inclination4.3056°
64.643°
127.36°
Earth MOID0.1922 AU · 74.9 LD
Jupiter MOID0.5212 AU
Physical characteristics
2.3 km (dated)[1]
3.149 km[3]
3.15 km (taken)[4]
3.199±0.207 km[5]
3.50 h[6][a]
3.51 h[7]
0.0778[3]
0.15[1]
0.161±0.034[5]
M[4][8]
B–V = 0.677[1]
U–B = 0.267[1]
15.1[1][5] · 15.40±0.1 (R)[a] · 15.9±0.112[3][4] · 16.11[7]

(6178) 1986 DA is a metallic asteroid, classified as near-Earth object of the Amor group, approximately 3 kilometers in diameter. It was discovered on 16 February 1986, by Japanese astronomer Minoru Kizawa at Shizuoka Observatory, Japan.[2]

1986 DA was the first near Earth asteroid thought to be of metallic composition, with high radar brightness; with that it was predicted to have 100 thousand tons of platinum group metals including gold and suggested as a resource for future space colonists.[9]

  1. ^ a b c d e f g Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference MPC-6178 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Pravec-2012b was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference lcdb was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Zeigler-1990 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Wisniewski-1987b was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Ostro-1991a was invoked but never defined (see the help page).
  9. ^ "Near-Earth Metal Asteroid Discovered". NASA/JPL. Retrieved 30 October 2018.


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