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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 29 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .188481147740033 | 3.524e-08 | |
| a | 2.409225892602162 | 9.5074e-09 | au |
| q | 1.955132231199501 | 8.4055e-08 | au |
| i | 3.404941193850054 | 3.4103e-06 | deg |
| node | 101.4916818797063 | 6.7966e-05 | deg |
| peri | 222.7828271904798 | 6.8808e-05 | deg |
| M | 270.1079525799261 | 1.366e-05 | deg |
| tp | 2459541.562115347801
(2021-Nov-23.06211535) | 5.2925e-05 | TDB |
| period | 1365.886805886567
3.74 | 8.0851e-06
2.214e-08 | d
yr |
| n | .2635650322182678 | 1.5601e-09 | deg/d |
| Q | 2.863319554004823 | 1.1299e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.93 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
2.886 |
km |
0.176 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
4.368240 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.] |
| geometric albedo |
albedo |
0.307 |
|
0.060 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 11900 Spinoy | Discovered 1991 June 6 by E. W. Elst at the European Southern Observatory. |
| Constant Spinoy (1924-1997) was a famous Belgian artist and engraver who specialised in the design of postage stamps, of which he engraved more than 100. These include Vielsalm, Towers of Ghent and Double astrograph at the Royal Observatory of Uccle. In 1977 he was honored with the Prize of Europe for his Jeugdfilatelie. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20010509/MPCPages.arc | Last Updated: 2009-05-11 |
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