Discovery[1] | |
---|---|
Discovered by | S. Ueda H. Kaneda |
Discovery site | Kushiro Obs. |
Discovery date | 11 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 arc | 26.90 yr (9,825 days) |
Aphelion | 3.0791 AU |
Perihelion | 1.2087 AU |
2.1439 AU | |
Eccentricity | 0.4362 |
3.14 yr (1,147 days) | |
218.56° | |
0° 18m 50.4s / day | |
Inclination | 7.9118° |
14.141° | |
335.68° | |
Known satellites | 1[3][4] |
Earth MOID | 0.2112 AU · 82.3 LD |
Physical characteristics | |
Dimensions | 2.03±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]
jpldata
was invoked but never defined (see the help page).MPC-5646
was invoked but never defined (see the help page).Warner-2013e
was invoked but never defined (see the help page).Binary
was invoked but never defined (see the help page).Mueller-2011a
was invoked but never defined (see the help page).lcdb
was invoked but never defined (see the help page).Nugent-2016
was invoked but never defined (see the help page).WISE
was invoked but never defined (see the help page).Warner-2016e
was invoked but never defined (see the help page).Wisniewski-1992
was invoked but never defined (see the help page).Mainzer-2011
was invoked but never defined (see the help page).Thomas-2011b
was invoked but never defined (see the help page).Thomas-2014
was invoked but never defined (see the help page).Carry-2016
was invoked but never defined (see the help page).