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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 | .05066718962720455 | 3.6031e-08 | |
a | 2.562011879502862 | 1.0291e-08 | au |
q | 2.43220193777694 | 9.5276e-08 | au |
i | 15.34128211761861 | 4.7928e-06 | deg |
node | 160.2578132674451 | 1.1809e-05 | deg |
peri | 323.4765052460339 | 5.8322e-05 | deg |
M | 47.86955439211539 | 5.4071e-05 | deg |
tp | 2458801.328580061850 (2019-Nov-13.82858006) | 0.00022537 | TDB |
period | 1497.85624888842 4.10 | 9.0251e-06 2.471e-08 | d yr |
n | .240343491084115 | 1.4482e-09 | deg/d |
Q | 2.691821821228784 | 1.0813e-08 | 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 |
12.7 |
|
n/a |
MPO384875 |
|
diameter |
diameter |
7.528 |
km |
0.501 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
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rotation period |
rot_per |
4.56853 |
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: [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
geometric albedo |
albedo |
0.312 |
|
0.041 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
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13581 (1993 QX4) Discovered 1993-Aug-19 by Helin, E. F. at Palomar |
Reference: 20000222/Numbers.arc | Last Updated: 2004-04-19 |
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Alternate Designations
1993 QX4 = 1975 EW4 = 1987 DW4 |
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