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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .2545100076253941 | 5.2673e-08 | |
a | 2.562167698160343 | 1.1922e-08 | au |
q | 1.910070377764016 | 1.3881e-07 | au |
i | 25.0138046473052 | 4.4518e-06 | deg |
node | 110.7369703795897 | 1.1789e-05 | deg |
peri | 117.0671780126645 | 1.5312e-05 | deg |
M | 151.0886807518754 | 1.318e-05 | deg |
tp | 2458371.806192469615 (2018-Sep-10.30619247) | 5.1899e-05 | TDB |
period | 1497.992897844065 4.10 | 1.0456e-05 2.863e-08 | d yr |
n | .2403215666229911 | 1.6774e-09 | deg/d |
Q | 3.214265018556671 | 1.4957e-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 |
13.2 |
|
n/a |
MPO395205 |
|
diameter |
diameter |
8.111 |
km |
0.073 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
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rotation period |
rot_per |
7.550 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Warner, B.D. (2006) Minor Planet Bull. 33, 85-88.] |
geometric albedo |
albedo |
0.203 |
|
0.023 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
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21022 Ike | Discovered 1989 Feb. 2 by T. Seki at Geisei. |
Koichi Ike (b. 1925) was born in Tosa city in Kochi prefecture. He took an interest in astronomy by reading science magazines when he was a boy in primary school. He is a long-time friend and assistant of the discoverer, who worked together with Ike in astronomical research and observation. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: 20040107/MPCPages.arc | Last Updated: 2004-01-07 |
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Alternate Designations
1989 CR = 1994 NT = 1998 MQ5 |
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