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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 33 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1187083962211002 | 1.4752e-08 | |
a | 3.250328991161832 | 1.8796e-08 | au |
q | 2.864487649430064 | 5.5691e-08 | au |
i | 12.26038246348712 | 9.0997e-07 | deg |
node | 6.964957759306046 | 1.7573e-06 | deg |
peri | 336.7308709655647 | 9.9731e-06 | deg |
M | 148.6201666877519 | 1.2477e-05 | deg |
tp | 2458316.881800086293 (2018-Jul-17.38180009) | 7.2051e-05 | TDB |
period | 2140.372730419968 5.86 | 1.8566e-05 5.083e-08 | d yr |
n | .1681950040212686 | 1.459e-09 | deg/d |
Q | 3.636170332893599 | 2.1027e-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 |
12.84 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
16.870 |
km |
0.061 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
rotation period |
rot_per |
20.329 |
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 |
0.082 |
|
0.010 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
8564 Anomalocaris | Discovered 1995 Oct. 17 by Y. Shimizu and T. Urata at the Nachi-Katsuura Observatory. |
Anomalocaris, a large carnivorous arthropod, was one of the many uniquely shaped multicellular creatures that appeared during the Cambrian explosion. The fossil was first discovered in the Burgess Shale in the Canadian Rocky Mountains. The name was suggested by I. Makino. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: 19990928/MPCPages.arc | Last Updated: 2010-06-11 |
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