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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 15 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2308566335320886 | 9.8918e-08 | |
| a | 2.56996168742593 | 2.369e-08 | au |
| q | 1.976668983960334 | 2.6906e-07 | au |
| i | 6.227745418191915 | 5.2456e-06 | deg |
| node | 164.0601466309114 | 3.9273e-05 | deg |
| peri | 215.9797903685348 | 4.1655e-05 | deg |
| M | 322.1279012220776 | 8.5306e-06 | deg |
| tp | 2459158.808878733345
(2020-Nov-05.30887873) | 3.4784e-05 | TDB |
| period | 1504.833325403857
4.12 | 2.0808e-05
5.697e-08 | d
yr |
| n | .2392291517755867 | 3.3079e-09 | deg/d |
| Q | 3.163254390891526 | 2.9159e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2458082.5 (2017-Nov-25.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2331028669127402 | 9.9401e-08 | |
| q | 1.969357262780518 | 2.7076e-07 | au |
| tp | 2457654.435698271383
(2016-Sep-22.93569827) | 4.6136e-05 | TDB |
| node | 164.2119882565949 | 3.9278e-05 | deg |
| peri | 215.851383230945 | 4.1588e-05 | deg |
| i | 6.230010116072698 | 5.253e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
9.880570830419588E-15 |
-2.689296225675526E-14 |
3.174812042275725E-12 |
4.45782523061051E-14 |
9.341505995107576E-13 |
-2.401603237943878E-14 |
| q |
-2.689296225675526E-14 |
7.331303647453534E-14 |
-8.788182693973287E-12 |
-1.219098356314352E-13 |
-2.573556256686198E-12 |
6.607995921917773E-14 |
| tp |
3.174812042275725E-12 |
-8.788182693973287E-12 |
2.12852929125578E-9 |
1.676773209207676E-11 |
6.44342355007657E-10 |
-8.58968390175576E-12 |
| node |
4.45782523061051E-14 |
-1.219098356314352E-13 |
1.676773209207676E-11 |
1.542798528482389E-9 |
-1.528103546079185E-9 |
1.082023604731936E-10 |
| peri |
9.341505995107576E-13 |
-2.573556256686198E-12 |
6.44342355007657E-10 |
-1.528103546079185E-9 |
1.729554173303586E-9 |
-1.101364651056298E-10 |
| i |
-2.401603237943878E-14 |
6.607995921917773E-14 |
-8.58968390175576E-12 |
1.082023604731936E-10 |
-1.101364651056298E-10 |
2.759387357301617E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.6 |
|
n/a |
MPO437597 |
|
|
| 390185 (2012 WF16) Discovered 2008-Dec-21 by CSS at Catalina |
| Reference: | Last Updated: 2014-03-21 |
|
|
