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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09463432452358361 | 5.1036e-08 | |
| a | 3.251464330951406 | 3.7192e-08 | au |
| q | 2.943764200279294 | 1.7786e-07 | au |
| i | 5.93516736157443 | 5.294e-06 | deg |
| node | 89.07131641165986 | 7.0484e-05 | deg |
| peri | 347.9470355247041 | 8.3039e-05 | deg |
| M | 251.176787030119 | 4.366e-05 | deg |
| tp | 2459647.845243684929
(2022-Mar-09.34524368) | 0.00026306 | TDB |
| period | 2141.494276511337
5.86 | 3.6744e-05
1.006e-07 | d
yr |
| n | .1681069167210049 | 2.8844e-09 | deg/d |
| Q | 3.559164461623519 | 4.0712e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.16 |
|
n/a |
E2021B55 |
|
| diameter |
diameter |
3.236 |
km |
0.376 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.061 |
|
0.008 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 266754 (2009 SA77) Discovered 2009-Sep-17 by Spacewatch at Kitt Peak |
| Reference: 20110218/Numbers.arc | Last Updated: 2011-02-22 |
|
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