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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 18 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1969483223920516 | 2.895e-08 | |
| a | 2.334978124883954 | 9.5143e-09 | au |
| q | 1.875108100365921 | 6.5593e-08 | au |
| i | 3.756911057075296 | 3.9595e-06 | deg |
| node | 120.1283623358544 | 4.9159e-05 | deg |
| peri | 98.34609283650551 | 5.0254e-05 | deg |
| M | 120.7394757336563 | 1.1757e-05 | deg |
| tp | 2458763.411443544058
(2019-Oct-06.91144354) | 4.1242e-05 | TDB |
| period | 1303.234748768063
3.57 | 7.9654e-06
2.181e-08 | d
yr |
| n | .2762357283216282 | 1.6884e-09 | deg/d |
| Q | 2.794848149401987 | 1.1388e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.73 |
|
n/a |
E2021B55 |
|
|
| 100879 (1998 HC91) Discovered 1998-Apr-21 by LINEAR at Socorro |
| Reference: 20051019/Numbers.arc | Last Updated: 2005-10-26 |
|
Alternate Designations
| 1998 HC91 = 1991 LU5 = 2000 YK14 |
|
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