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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 22 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .03828091958044619 | 3.948e-08 | |
| a | 2.541238160326084 | 1.2139e-08 | au |
| q | 2.44395722667588 | 1.0323e-07 | au |
| i | 3.621010083964504 | 4.6263e-06 | deg |
| node | 216.4879872181376 | 6.4026e-05 | deg |
| peri | 222.4672275779453 | 9.0265e-05 | deg |
| M | 1.06993100654968 | 6.4244e-05 | deg |
| tp | 2459196.102359212110
(2020-Dec-12.60235921) | 0.00026406 | TDB |
| period | 1479.675487437042
4.05 | 1.0602e-05
2.903e-08 | d
yr |
| n | .2432965897296567 | 1.7432e-09 | deg/d |
| Q | 2.638519093976288 | 1.2603e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.6 |
|
n/a |
MPO439243 |
|
| diameter |
diameter |
2.698 |
km |
0.838 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.202 |
|
0.094 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 21317 (1996 XV18) Discovered 1996-Dec-12 by Klet at Klet |
| Reference: 20010208/Numbers.arc | Last Updated: 2004-04-19 |
|
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