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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 40 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1552385900068092 | 1.3609e-08 | |
a | 3.111318059415171 | 1.1691e-08 | au |
q | 2.628321430808839 | 4.0754e-08 | au |
i | 5.301475400419237 | 6.9306e-07 | deg |
node | 328.4841937554959 | 6.5737e-06 | deg |
peri | 329.9779377250719 | 1.0765e-05 | deg |
M | 33.44310433703529 | 6.5962e-06 | deg |
tp | 2459014.283086259972 (2020-Jun-13.78308626) | 3.65e-05 | TDB |
period | 2004.541452575954 5.49 | 1.1298e-05 3.093e-08 | d yr |
n | .1795921952810598 | 1.0123e-09 | deg/d |
Q | 3.594314688021504 | 1.3506e-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 |
9.39 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
38.234 |
km |
1.701 |
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 |
12.249 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Alkema, M.S. (2013) Minor Planet Bull. 40, 133-137.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
geometric albedo |
albedo |
0.230 |
|
0.036 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
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577 Rhea (A905 UR) Discovered 1905-Oct-20 by Wolf, M. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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Alternate Designations
A905 UR = 1943 QD = 1949 SF1 = 1952 DC = A912 AC |
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