| 2060 Chiron (1977 UB) |
| Classification: Centaur SPK-ID: 2002060 |
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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 131 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3787836686024125 | 7.3371e-08 | |
| a | 13.68570638966072 | 1.4895e-06 | au |
| q | 8.501784315969557 | 8.9726e-07 | au |
| i | 6.939550266990163 | 5.7907e-06 | deg |
| node | 209.2424353144811 | 3.9594e-05 | deg |
| peri | 339.8102594746993 | 4.2174e-05 | deg |
| M | 172.8369427686686 | 3.5839e-05 | deg |
| tp | 2450122.128169717194
(1996-Feb-08.62816972) | 0.00046447 | TDB |
| period | 18492.65445049987
50.63 | 0.003019
8.266e-06 | d
yr |
| n | .01946718903787601 | 3.1781e-09 | deg/d |
| Q | 18.86962846335189 | 2.0537e-06 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
5.8 |
|
n/a |
MPO431518 |
|
| diameter |
diameter |
166 |
km |
n/a |
Dunham occultation list: Duham 1998 |
Yeomans E-mail 2001-Apr-04 |
| rotation period |
rot_per |
5.918 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Bus, S.J.; Bowell, E.; Harris, A.W.; Hewitt, A.V. (1989) Icarus 77, 223-238.]
[Luu, J.X.; Jewitt, D.C. (1990) Astron. J. 100, 913-932.]
[Marcialis, R.L.; Buratti, B.J. (1993) Icarus 104, 234-243.]
[Lazzaro, D.; Florczak, M.A.; Angeli, C.A.; Carvano, J.M.; et al. (1997) Planet. Space Sci. 45, 1607-1614.] |
| geometric albedo |
albedo |
0.15 |
|
0.03 |
Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002) |
|
| B-V |
BV |
0.704 |
|
0.024 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=1.81, mean=2.51, max.=2.88) deg. |
| U-B |
UB |
0.283 |
|
0.060 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=1.81, mean=2.51, max.=2.88) deg. |
| Tholen spectral type |
spec_T |
B |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 4 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
Cb |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 2060 Chiron (1977 UB) Discovered 1977-Oct-18 by Kowal, C. at Palomar |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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