Discovery[1] | |
---|---|
Discovered by | Perth Obs. |
Discovery site | Perth Obs. |
Discovery date | 16 November 1981 |
Designations | |
(9928) 1981 WE9 | |
1981 WE9 · 1971 TJ1 1993 FC43 | |
main-belt[1][2] · Flora[3] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 65.74 yr (24,012 days) |
Aphelion | 2.6101 AU |
Perihelion | 1.8246 AU |
2.2174 AU | |
Eccentricity | 0.1771 |
3.30 yr (1,206 days) | |
340.29° | |
0° 17m 54.6s / day | |
Inclination | 2.8472° |
179.45° | |
176.04° | |
Physical characteristics | |
Dimensions | 2.441±0.327 km[4] 2.938±0.660 km[5] 3.00±0.42 km[6] 3.11 km (calculated)[3] |
5.547±0.005 h[7] 18.310±0.0034 h[8] 18.3980±0.0034 h[3][8] | |
0.24 (assumed)[3] 0.283±0.152[6] 0.3557±0.2289[5] 0.428±0.109[4] | |
S[3] | |
14.4[5] · 14.60[4][6] · 14.7[1][3] | |
(9928) 1981 WE9, provisional designation 1981 WE9, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 16 November 1981, by astronomers at Perth Observatory in Bickley, Australia.[2]
jpldata
was invoked but never defined (see the help page).MPC-object
was invoked but never defined (see the help page).lcdb
was invoked but never defined (see the help page).Nugent-2015
was invoked but never defined (see the help page).WISE
was invoked but never defined (see the help page).Masiero-2012
was invoked but never defined (see the help page).Clark-2008a
was invoked but never defined (see the help page).Clark-2015b
was invoked but never defined (see the help page).