| 5145 Pholus (1992 AD) |
| Classification: Centaur SPK-ID: 2005145 |
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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 22 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .5692573039301972 | 6.3621e-07 | |
| a | 20.37593913319939 | 4.7301e-05 | au |
| q | 8.776786957188506 | 8.8632e-06 | au |
| i | 24.61270269838907 | 1.3258e-05 | deg |
| node | 119.445311194686 | 2.9692e-05 | deg |
| peri | 354.9191486915832 | 0.00012926 | deg |
| M | 112.7149033393026 | 0.00041837 | deg |
| tp | 2448482.002186876673
(1991-Aug-13.50218688) | 0.0024714 | TDB |
| period | 33595.01805476
91.98 | 0.11698
0.0003203 | d
yr |
| n | .0107158745803678 | 3.7314e-08 | deg/d |
| Q | 31.97509130921028 | 7.4227e-05 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
7.1 |
|
n/a |
MPO169571 |
|
| diameter |
diameter |
190 |
km |
26 |
Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002) |
|
| rotation period |
rot_per |
9.980 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Buie, M.W.; Bus, S.J. (1992) Icarus 100, 288-294.]
[Hoffmann, M.; Fink, U.; Grundy, W.M. (1992) in Observations and Physical Properties of Small Solar System Bodies. A. Brahic, J.-C. Gerard, J. Surdej, eds. Universite de Liege, Institut d'Astrophysique, Liege, pp. 203-208.]
[Farnham, T.L. (2001) Icarus 152, 238-245.]
[Tegler, S.C.; Romanishin, W.; Consolmagno, G.J.; Rall, J.; et al. (2005) Icarus 175, 390-396.] |
| geometric albedo |
albedo |
0.044 |
|
0.013 |
Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002) |
|
| Tholen spectral type |
spec_T |
Z |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 3 color indices |
|
| 5145 Pholus (1992 AD) Discovered 1992-Jan-09 by Spacewatch at Kitt Peak |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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