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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 10 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08593238123215578 | 8.9628e-08 | |
| a | 3.129175884008143 | 4.6404e-08 | au |
| q | 2.860278349001087 | 3.0029e-07 | au |
| i | 9.233768990082069 | 6.4615e-06 | deg |
| node | 275.5646336852855 | 5.5225e-05 | deg |
| peri | 66.75787365440171 | 6.6703e-05 | deg |
| M | 289.4836820683444 | 4.1285e-05 | deg |
| tp | 2459396.532215298230
(2021-Jul-01.03221530) | 0.00023666 | TDB |
| period | 2021.824191750101
5.54 | 4.4974e-05
1.231e-07 | d
yr |
| n | .1780570246755146 | 3.9607e-09 | deg/d |
| Q | 3.398073419015198 | 5.0392e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.5 |
|
n/a |
MPO254460 |
|
| diameter |
diameter |
4.620 |
km |
0.207 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.052 |
|
0.009 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 249652 (1999 TY268) Discovered 1999-Oct-03 by LINEAR at Socorro |
| Reference: 20100923/Numbers.arc | Last Updated: 2010-09-27 |
|
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