[ hide orbit diagram ]
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 26 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1712056466057079 | 3.2722e-08 | |
| a | 2.209633126731905 | 7.6567e-09 | au |
| q | 1.831331458508377 | 7.3255e-08 | au |
| i | 6.875793677467761 | 4.328e-06 | deg |
| node | 63.28754522253931 | 3.3184e-05 | deg |
| peri | 219.5670547755961 | 3.7599e-05 | deg |
| M | 229.2414732418181 | 2.1015e-05 | deg |
| tp | 2459636.258837029429
(2022-Feb-25.75883703) | 7.1469e-05 | TDB |
| period | 1199.71664731821
3.28 | 6.2358e-06
1.707e-08 | d
yr |
| n | .3000708549012194 | 1.5597e-09 | deg/d |
| Q | 2.587934794955433 | 8.9675e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.7 |
|
n/a |
MPO502609 |
|
|
| 74861 (1999 TW90) Discovered 1999-Oct-02 by LINEAR at Socorro |
| Reference: 20040415/Numbers.arc | Last Updated: 2004-04-19 |
|
[ show close-approach data ]
|
