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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 30 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09468940837868917 | 4.6634e-08 | |
| a | 2.678157456157994 | 1.2167e-08 | au |
| q | 2.424564311089419 | 1.2821e-07 | au |
| i | 1.49788951797953 | 3.9871e-06 | deg |
| node | 299.5421782938299 | 0.00016863 | deg |
| peri | 48.84211444002028 | 0.00016958 | deg |
| M | 268.2321242125171 | 1.9352e-05 | deg |
| tp | 2459608.575729048329
(2022-Jan-29.07572905) | 8.672e-05 | TDB |
| period | 1600.857175746422
4.38 | 1.0909e-05
2.987e-08 | d
yr |
| n | .224879524203741 | 1.5325e-09 | deg/d |
| Q | 2.931750601226569 | 1.3319e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.06 |
|
n/a |
E2021B10 |
|
|
| 20888 Siyueguo | Discovered 2000 Nov. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. |
| Si Yue Guo (b. 1987) was awarded first place in the 2004 Intel International Science and Engineering Fair for her physics team project. She also received the MILSET Expo-Science Europe award. She attends the College Regina Assumpta, Montreal, Quebec, Canada. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20041226/MPCPages.arc | Last Updated: 2004-12-25 |
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