(5646) 1990 TR

(5646) 1990 TR
Discovery[1]
Discovered byS. Ueda
H. Kaneda
Discovery siteKushiro Obs.
Discovery date11 October 1990
Designations
(5646) 1990 TR
1990 TR
Amor · NEO[1][2]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc26.90 yr (9,825 days)
Aphelion3.0791 AU
Perihelion1.2087 AU
2.1439 AU
Eccentricity0.4362
3.14 yr (1,147 days)
218.56°
0° 18m 50.4s / day
Inclination7.9118°
14.141°
335.68°
Known satellites1[3][4]
Earth MOID0.2112 AU · 82.3 LD
Physical characteristics
Dimensions2.03±0.52 km[5]
2.30 km (derived)[6]
2.50±0.05 km[7]
2.723±0.525 km[8]
4.3 km (dated)[1]
3.1999±0.0002 h[3]
3.204±0.002 h[9]
6.25 h[10]
0.18 (assumed)[6]
0.19±0.03[7]
0.454±0.194[8][11]
0.65±0.43[5]
0.66±0.42[12]
SMASS = U[1]
Q[13] · S[14] · U[6]
14.3[8] · 15.00[14] · 15.4[1] · 15.45[7] · 15.67[6][10]

(5646) 1990 TR is a probable rare-type binary[4] asteroid classified as near-Earth object of the Amor group, approximately 2.3 kilometers in diameter. It was discovered on 11 October 1990, by Japanese astronomers Seiji Ueda and Hiroshi Kaneda at Kushiro Observatory near Kushiro, in eastern Hokkaido, Japan.[2]

  1. ^ a b c d e f Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference MPC-5646 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Warner-2013e was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Binary was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Mueller-2011a was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Warner-2016e was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Wisniewski-1992 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Mainzer-2011 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Thomas-2011b was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Thomas-2014 was invoked but never defined (see the help page).
  14. ^ a b Cite error: The named reference Carry-2016 was invoked but never defined (see the help page).