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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 42 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1618318287440777 | 3.1622e-08 | |
a | 2.245639398317076 | 5.7468e-09 | au |
q | 1.882223467787673 | 7.0564e-08 | au |
i | 7.598365206559787 | 3.6568e-06 | deg |
node | 90.7207284932186 | 2.8541e-05 | deg |
peri | 190.9171631287086 | 3.0984e-05 | deg |
M | 95.5514600722851 | 1.3528e-05 | deg |
tp | 2458674.255437199905 (2019-Jul-09.75543720) | 4.5737e-05 | TDB |
period | 1229.160104086156 3.37 | 4.7183e-06 1.292e-08 | d yr |
n | .2928829196483311 | 1.1243e-09 | deg/d |
Q | 2.609055328846479 | 6.6769e-09 | 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 |
12.8 |
|
n/a |
MPO435711 |
|
diameter |
diameter |
9.035 |
km |
1.496 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
rotation period |
rot_per |
64.23 |
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: [Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] |
geometric albedo |
albedo |
0.179 |
|
0.092 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
SMASSII spectral type |
spec_B |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
1634 Ndola | Discovered 1935 Aug. 19 by C. Jackson at Johannesburg. |
Named for the most important mining town in Zambia. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: MPC 5182 | Last Updated: 2006-03-21 |
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