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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 43 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .08678584019732033 | 3.1722e-08 | |
a | 2.99665380432931 | 1.1646e-08 | au |
q | 2.736586686140094 | 9.3412e-08 | au |
i | 15.14725581943699 | 4.2609e-06 | deg |
node | 198.07591399466 | 1.312e-05 | deg |
peri | 251.7750815520467 | 2.7682e-05 | deg |
M | 177.9952732397635 | 2.5237e-05 | deg |
tp | 2458063.673310374595 (2017-Nov-06.17331037) | 0.00013115 | TDB |
period | 1894.75597933914 5.19 | 1.1046e-05 3.024e-08 | d yr |
n | .1899980809800965 | 1.1076e-09 | deg/d |
Q | 3.256720922518525 | 1.2657e-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 |
10.4 |
|
n/a |
MPO347521 |
|
diameter |
diameter |
49.146 |
km |
0.763 |
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 |
6.826 |
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: [Polakis, T. (2018) Minor Planet Bull. 45, 199-203.] [Polakis, T. (2020) Minor Planet Bull. 47, 314-321.] |
geometric albedo |
albedo |
0.055 |
|
0.009 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
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904 Rockefellia (A918 UC) Discovered 1918-Oct-29 by Wolf, M. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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[ show close-approach data ]
Alternate Designations
A918 UC = 1949 UK = 1961 AK = A913 UD = A916 KC |
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