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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 26 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1911639921364488 | 3.7347e-08 | |
a | 2.555043865041926 | 1.0485e-08 | au |
q | 2.06661147971677 | 9.3416e-08 | au |
i | 8.082649398484548 | 4.5624e-06 | deg |
node | 166.0664762673484 | 3.338e-05 | deg |
peri | 237.3218104077707 | 3.6133e-05 | deg |
M | 32.63779027094122 | 1.5009e-05 | deg |
tp | 2459065.257181128716 (2020-Aug-03.75718113) | 6.2072e-05 | TDB |
period | 1491.74972905597 4.08 | 9.1827e-06 2.514e-08 | d yr |
n | .241327343982707 | 1.4855e-09 | deg/d |
Q | 3.043476250367082 | 1.249e-08 | 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 |
14.6 |
|
n/a |
MPO449112 |
|
diameter |
diameter |
3.792 |
km |
0.827 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
geometric albedo |
albedo |
0.162 |
|
0.075 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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21672 Laichunju | Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. |
Lai Chun-Ju (b. 1986) was awarded second place in the 2005 Intel International Science and Engineering Fair for his mathematics project. He attends the Taipei Municipal Chien-Kuo Senior High School, Taipei City, Chinese Taipei. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: 20050822/MPCPages.arc | Last Updated: 2005-08-26 |
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Alternate Designations
1999 RK14 = 1991 TY5 = 1995 SW2 = 1997 ET18 |
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