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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 35 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1291667940797955 | 2.5617e-08 | |
| a | 2.759239812819421 | 1.1875e-08 | au |
| q | 2.402837652100201 | 7.4886e-08 | au |
| i | 9.076830813155102 | 9.9664e-07 | deg |
| node | 3.44749895661741 | 7.0636e-06 | deg |
| peri | 48.61272154366257 | 1.5057e-05 | deg |
| M | 318.8608646283799 | 1.1798e-05 | deg |
| tp | 2459391.808936576955
(2021-Jun-26.30893658) | 5.5147e-05 | TDB |
| period | 1674.10463408073
4.58 | 1.0808e-05
2.959e-08 | d
yr |
| n | .215040322254218 | 1.3883e-09 | deg/d |
| Q | 3.11564197353864 | 1.3409e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.42 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
8.78889 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
|
| 9954 Brachiosaurus | Discovered 1991 Apr. 8 by E. W. Elst at the European Southern Observatory. |
| Brachiosaurus, the heaviest of all dinosaurs (about 70 tons) had a very long neck with a small head. Preferring swampy areas, where the water would have supported its weight, it lived during in Jurassic--Lower 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 |
|
Alternate Designations
| 1991 GX7 = 1984 WP5 = 1993 UO3 |
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