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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 | .1920718327022688 | 1.793e-08 | |
a | 3.129209364156061 | 1.239e-08 | au |
q | 2.528176386673505 | 5.9551e-08 | au |
i | .9192273187423857 | 9.5253e-07 | deg |
node | 16.95231453377217 | 6.9476e-05 | deg |
peri | 340.6388336776032 | 6.8464e-05 | deg |
M | 286.8042588243734 | 4.5193e-06 | deg |
tp | 2459611.586931461636 (2022-Feb-01.08693146) | 2.6351e-05 | TDB |
period | 2021.856640143819 5.54 | 1.2009e-05 3.288e-08 | d yr |
n | .1780541670720988 | 1.0575e-09 | deg/d |
Q | 3.730242341638617 | 1.477e-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 |
11.94 |
|
n/a |
E2021B10 |
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diameter |
diameter |
22.435 |
km |
0.142 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
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rotation period |
rot_per |
22.96 |
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: [Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
geometric albedo |
albedo |
0.058 |
|
0.010 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
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2016 Heinemann (1938 SE) Discovered 1938-Sep-18 by Bohrmann, A. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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Alternate Designations
1938 SE = 1927 SM = 1930 DF = 1949 SB1 = 1971 OB1 = 1971 QP2 = 1972 VY = 1977 RZ7 = A905 UF |
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