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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1227290070370404 | 2.4858e-08 | |
| a | 2.426034071177818 | 7.6776e-09 | au |
| q | 2.128289318584136 | 5.8903e-08 | au |
| i | 7.402929600172412 | 2.7515e-06 | deg |
| node | 133.3918177026094 | 3.1186e-05 | deg |
| peri | 153.023496049034 | 3.5743e-05 | deg |
| M | 108.6359622645607 | 1.8047e-05 | deg |
| tp | 2458784.000115449104
(2019-Oct-27.50011545) | 6.9244e-05 | TDB |
| period | 1380.205553600882
3.78 | 6.5519e-06
1.794e-08 | d
yr |
| n | .2608307139909554 | 1.2382e-09 | deg/d |
| Q | 2.723778823771501 | 8.6199e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.30 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
3.767 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Marchini, A.; Franco, L.; Papini, R.; Banfi, M.; et al. (2019) Minor Planet Bull. 46, 504-505.] |
|
| 9951 Tyrannosaurus | Discovered 1990 Nov. 15 by E. W. Elst at the European Southern Observatory. |
| Tyrannosaurus, a heavy bipedal dinosaur with a huge skull, long massive jaws and dagger-like teeth, was a most terrifying predator. Almost 14 meters long and 5 to 8 meters high, it lived during Upper Cretaceous times. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20021120/MPCPages.arc | Last Updated: 2003-10-02 |
|
[ show close-approach data ]
Alternate Designations
| 1990 VK5 = 1974 OG1 = 1992 EZ5 |
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