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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08820434691001966 | 3.4479e-08 | |
| a | 2.750113407755475 | 1.1527e-08 | au |
| q | 2.507541450695915 | 9.5433e-08 | au |
| i | 4.87509331027444 | 4.0332e-06 | deg |
| node | 342.8404945015594 | 3.7406e-05 | deg |
| peri | 35.17288684453239 | 4.2881e-05 | deg |
| M | 110.6076966348758 | 2.0451e-05 | deg |
| tp | 2458488.691870823189
(2019-Jan-05.19187082) | 9.4745e-05 | TDB |
| period | 1665.805654663236
4.56 | 1.0473e-05
2.867e-08 | d
yr |
| n | .216111644832169 | 1.3587e-09 | deg/d |
| Q | 2.992685364815035 | 1.2544e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.2 |
|
n/a |
MPO458914 |
|
| diameter |
diameter |
11.191 |
km |
2.605 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N) |
|
| geometric albedo |
albedo |
0.058 |
|
0.022 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| SMASSII spectral type |
spec_B |
C |
|
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) |
|
| 8450 Egorov | Discovered 1977 Aug. 19 by N. S. Chernykh at the Crimean Astrophysical Observatory. |
| Vsevolod Aleksandrovich Egorov (1930-2001) was one of the founders of the modern theory of the space flight dynamics. One of the leading researchers at the Keldysh Institute of Applied Mathematics and a professor at Moscow University, he was a pioneer in studying trajectories from the earth to the moon. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20020328/MPCPages.arc | Last Updated: 2003-10-02 |
|
Alternate Designations
| 1977 QL1 = 1959 UC = 1975 ED4 = 1986 RL9 = 1991 RN7 |
|
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