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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 29 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09468940622686556 | 4.8064e-08 | |
| a | 2.678157450697209 | 1.2337e-08 | au |
| q | 2.424564311908635 | 1.3239e-07 | au |
| i | 1.497889605457958 | 4.0169e-06 | deg |
| node | 299.542186953836 | 0.00017367 | deg |
| peri | 48.84210499923908 | 0.00017458 | deg |
| M | 268.2321257408108 | 1.9361e-05 | deg |
| tp | 2459608.575721004169
(2022-Jan-29.07572100) | 8.6747e-05 | TDB |
| period | 1600.857170850181
4.38 | 1.1061e-05
3.028e-08 | d
yr |
| n | .2248795248915378 | 1.5538e-09 | deg/d |
| Q | 2.931750589485783 | 1.3505e-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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