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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 35 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .03275752292913602 | 4.4092e-08 | |
a | 3.07150794805721 | 1.8682e-08 | au |
q | 2.970892956021702 | 1.3863e-07 | au |
i | 11.24370355623319 | 4.3804e-06 | deg |
node | 127.845742079017 | 2.377e-05 | deg |
peri | 77.82314953109774 | 6.9347e-05 | deg |
M | 312.8731279287327 | 6.5341e-05 | deg |
tp | 2459457.890199682765 (2021-Aug-31.39019968) | 0.00035726 | TDB |
period | 1966.191852191467 5.38 | 1.7939e-05 4.911e-08 | d yr |
n | .1830950522955088 | 1.6705e-09 | deg/d |
Q | 3.172122940092717 | 1.9294e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
12.87 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
8.237 |
km |
0.174 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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rotation period |
rot_per |
16.7965 |
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 |
0.237 |
|
0.062 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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14205 (1999 BC4) Discovered 1999-Jan-18 by Kagawa, T. at Gekko |
Reference: 20000320/Numbers.arc | Last Updated: 2004-04-19 |
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Alternate Designations
1999 BC4 = 1987 YJ2 = 1994 CP17 |
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