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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 25 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .159462194969472 | 4.2134e-08 | |
| a | 2.550768881114139 | 1.1377e-08 | au |
| q | 2.144017676471854 | 1.0774e-07 | au |
| i | 26.34652612720416 | 4.8455e-06 | deg |
| node | 206.5928132599969 | 1.0287e-05 | deg |
| peri | 162.4345556453108 | 1.9004e-05 | deg |
| M | 329.0013999703004 | 1.8694e-05 | deg |
| tp | 2459328.628184256111
(2021-Apr-24.12818426) | 7.7563e-05 | TDB |
| period | 1488.007403173263
4.07 | 9.9552e-06
2.726e-08 | d
yr |
| n | .2419342801872348 | 1.6186e-09 | deg/d |
| Q | 2.957520085756424 | 1.3191e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.62 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
6.550 |
km |
0.190 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
9.63782 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| geometric albedo |
albedo |
0.197 |
|
0.023 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 18325 (1984 SB2) Discovered 1984-Sep-29 by Mrkos, A. at Klet |
| Reference: 20001111/Numbers.arc | Last Updated: 2004-04-19 |
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