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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 34 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .2015475674922115 | 3.11e-08 | |
a | 2.145182625128849 | 6.0173e-09 | au |
q | 1.712826285207573 | 6.8555e-08 | au |
i | 6.674604643947479 | 3.0986e-06 | deg |
node | 188.4827243449936 | 2.8596e-05 | deg |
peri | 108.6145172821422 | 2.9962e-05 | deg |
M | 141.3983638759409 | 7.2371e-06 | deg |
tp | 2458749.748981743306 (2019-Sep-23.24898174) | 2.2872e-05 | TDB |
period | 1147.611345169322 3.14 | 4.8286e-06 1.322e-08 | d yr |
n | .3136950514783249 | 1.3199e-09 | deg/d |
Q | 2.577538965050126 | 7.23e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
14.31 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
3.367 |
km |
0.033 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
3.143 |
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: [Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm] [Aznar, A.M. (2017) Minor Planet Bull. 44, 60-63.] |
geometric albedo |
albedo |
0.366 |
|
0.066 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
SMASSII spectral type |
spec_B |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
4923 Clarke (1981 EO27) Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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