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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 | .1270685170385554 | 4.8084e-08 | |
| a | 3.073592588980379 | 1.6936e-08 | au |
| q | 2.683035736717948 | 1.5407e-07 | au |
| i | 8.845185246037639 | 5.0429e-06 | deg |
| node | 29.40433298709844 | 2.6959e-05 | deg |
| peri | 294.4084439154748 | 3.2834e-05 | deg |
| M | 18.19476205321762 | 1.6963e-05 | deg |
| tp | 2459101.025501807335
(2020-Sep-08.52550181) | 9.2845e-05 | TDB |
| period | 1968.19388154771
5.39 | 1.6267e-05
4.454e-08 | d
yr |
| n | .1829088096325705 | 1.5118e-09 | deg/d |
| Q | 3.46414944124281 | 1.9088e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.57 |
|
n/a |
MPCxxxxx |
|
| diameter |
diameter |
9.153 |
km |
0.163 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
26.006 |
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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] |
| geometric albedo |
albedo |
0.072 |
|
0.014 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 20606 Widemann | Discovered 1999 Sept. 5 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. |
| Thomas Widemann (b. 1961) is a planetary scientist at Paris Observatory and an associate professor at Versailles University. He is an expert in the field of stellar occultations and groundbased spectroscopy of planetary atmospheres. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20080718/MPCPages.arc | Last Updated: 2008-07-18 |
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