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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 42 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1006615195503362 | 2.2533e-08 | |
| a | 2.62193769099288 | 9.5926e-09 | au |
| q | 2.358009458851237 | 5.9559e-08 | au |
| i | 13.77470372766175 | 1.1209e-06 | deg |
| node | 199.6296108337693 | 1.8274e-06 | deg |
| peri | 33.30839004813689 | 8.0648e-06 | deg |
| M | 212.1403037356134 | 1.0318e-05 | deg |
| tp | 2459837.411786473967
(2022-Sep-14.91178647) | 4.6253e-05 | TDB |
| period | 1550.714961030625
4.25 | 8.5101e-06
2.33e-08 | d
yr |
| n | .2321509813516853 | 1.274e-09 | deg/d |
| Q | 2.885865923134523 | 1.0558e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2457322.5 (2015-Oct-27.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1007345707288228 | 2.248e-08 | |
| q | 2.357797710145824 | 5.9382e-08 | au |
| tp | 2456738.867292916640
(2014-Mar-22.36729292) | 3.9675e-05 | TDB |
| node | 199.653792272847 | 1.8262e-06 | deg |
| peri | 33.85448755605928 | 8.0964e-06 | deg |
| i | 13.7806405297979 | 1.1214e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
5.053710164736324E-16 |
-1.320693248779788E-15 |
3.416536611806002E-16 |
-5.954687613547519E-15 |
-2.906933153744015E-14 |
5.357738568866767E-15 |
| q |
-1.320693248779788E-15 |
3.526249928403615E-15 |
6.846277525201539E-14 |
1.581117445257099E-14 |
9.525190729770335E-14 |
-1.411270505002598E-14 |
| tp |
3.416536611806002E-16 |
6.846277525201539E-14 |
1.574127001614963E-9 |
2.027110363751368E-11 |
3.104112865131513E-10 |
-1.791324978731536E-11 |
| node |
-5.954687613547519E-15 |
1.581117445257099E-14 |
2.027110363751368E-11 |
3.334832812017007E-12 |
1.906681483679752E-12 |
-1.030869665391096E-12 |
| peri |
-2.906933153744015E-14 |
9.525190729770335E-14 |
3.104112865131513E-10 |
1.906681483679752E-12 |
6.555233553712632E-11 |
-3.228534620537165E-12 |
| i |
5.357738568866767E-15 |
-1.411270505002598E-14 |
-1.791324978731536E-11 |
-1.030869665391096E-12 |
-3.228534620537165E-12 |
1.2574786982713E-12 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.69 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
4.620 |
km |
0.205 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.361 |
|
0.025 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 22686 Mishchenko | Discovered 1998 Aug. 20 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. |
| Michael Ivanovich Mischenko (b. 1959), of the NASA Goddard Institute for Space Studies, studies electromagnetic scattering. He has developed a new branch of statistical optics based on numerically exact solutions of Maxwell's equations. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20090806/MPCPages.arc | Last Updated: 2011-05-09 |
|
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