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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 | .04733728316882196 | 4.6049e-08 | |
| a | 3.090196881480184 | 1.6823e-08 | au |
| q | 2.943915356654146 | 1.4191e-07 | au |
| i | 14.85371082907083 | 4.8813e-06 | deg |
| node | 342.9942999594999 | 1.3766e-05 | deg |
| peri | 19.05317079938126 | 4.3004e-05 | deg |
| M | 63.69903397229966 | 3.9332e-05 | deg |
| tp | 2458849.418458083598
(2019-Dec-31.91845808) | 0.00021735 | TDB |
| period | 1984.164393213041
5.43 | 1.6203e-05
4.436e-08 | d
yr |
| n | .1814365791621917 | 1.4816e-09 | deg/d |
| Q | 3.236478406306222 | 1.7619e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.65 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
7.758 |
km |
0.196 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.322 |
|
0.044 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 14237 (1999 YU9) Discovered 1999-Dec-31 by Kobayashi, T. at Oizumi |
| Reference: 20000320/Numbers.arc | Last Updated: 2004-04-19 |
|
[ show close-approach data ]
Alternate Designations
| 1999 YU9 = 1987 SM14 = 1995 EQ8 |
|
|
