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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 | .1340317455761135 | 2.7214e-08 | |
a | 2.649082093845174 | 1.0261e-08 | au |
q | 2.294020996632679 | 7.0079e-08 | au |
i | 13.54735056941216 | 4.2235e-06 | deg |
node | 132.1565027817047 | 1.2574e-05 | deg |
peri | 112.8834148517323 | 2.1232e-05 | deg |
M | 36.15480237714739 | 1.5962e-05 | deg |
tp | 2458842.336945454707 (2019-Dec-24.83694545) | 6.9802e-05 | TDB |
period | 1574.858549698366 4.31 | 9.1502e-06 2.505e-08 | d yr |
n | .2285919583501332 | 1.3282e-09 | deg/d |
Q | 3.004143191057668 | 1.1636e-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 |
13.1 |
|
n/a |
MPO474028 |
|
diameter |
diameter |
7.546 |
km |
0.117 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
7.6897 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Clark, M. (2016) Minor Planet Bull. 43, 2-5.] |
geometric albedo |
albedo |
0.200 |
|
0.037 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
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19918 (1977 PB) Discovered 1977-Aug-06 by Lagerkvist, C.-I. at Mount Stromlo |
Reference: 20010109/Numbers.arc | Last Updated: 2004-04-19 |
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[ show close-approach data ]
Alternate Designations
1977 PB = 1990 KE2 = 1990 SO18 = 1998 KV60 |
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