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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.
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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1174357607729263 | 2.6117e-08 | |
a | 2.198057680402037 | 5.8086e-09 | au |
q | 1.93992710448125 | 5.6731e-08 | au |
i | 1.920640015793167 | 4.5221e-06 | deg |
node | 149.9166325936535 | 8.5109e-05 | deg |
peri | 252.6732630620613 | 8.7861e-05 | deg |
M | 90.01903184328988 | 2.0882e-05 | deg |
tp | 2458302.861648102849 (2018-Jul-03.36164810) | 6.8869e-05 | TDB |
period | 1190.301700528245 3.26 | 4.7183e-06 1.292e-08 | d yr |
n | .3024443297360957 | 1.1989e-09 | deg/d |
Q | 2.456188256322824 | 6.4908e-09 | 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 |
14.2 |
|
n/a |
MPO421722 |
|
diameter |
diameter |
3.791 |
km |
0.141 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
geometric albedo |
albedo |
0.178 |
|
0.029 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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|
9553 Colas | Discovered 1985 Oct. 17 at Caussols. |
François Colas (b. 1959) is an expert on modern solar-system astrometry at the Institut de Mécanique Celeste in Paris. He has contributed to numerous research papers in observational planetary astronomy. A strong supporter of the Pic du Midi Observatory, he has many fruitful relations with the amateur community. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: 19991123/MPCPages.arc | Last Updated: 2010-06-11 |
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