| 85989 (1999 JD6) |
| Classification: Aten [NEO, PHA] SPK-ID: 2085989 |
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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.
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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 375 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .6328433390589016 | 2.3995e-08 | |
| a | .8831477536011442 | 1.0636e-09 | au |
| q | .324253580329828 | 2.1202e-08 | au |
| i | 17.06134615722447 | 3.2842e-06 | deg |
| node | 130.1711889760074 | 2.0301e-06 | deg |
| peri | 309.2301286079057 | 1.1829e-06 | deg |
| M | 238.1032938681928 | 3.7725e-06 | deg |
| tp | 2459103.145035521817
(2020-Sep-10.64503552) | 3.3556e-06 | TDB |
| period | 303.1436530196104
0.83 | 5.4762e-07
1.499e-09 | d
yr |
| n | 1.187555788861301 | 2.1453e-09 | deg/d |
| Q | 1.44204192687246 | 1.7367e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
17.1 |
|
n/a |
MPO263970 |
|
| diameter |
diameter |
1.462 |
km |
0.021 |
urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M) |
|
| rotation period |
rot_per |
7.6638 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2000) http://www.asu.cas.cz/~ppravec/neo.htm]
[Szabo, Gy.M.; Csak, B.; Sarneczky, K.; Kiss, L.L. (2001) Astron. Astrophys. 375, 285-292.]
[Polishook, D.; Brosch, N.; Prianik, D. (2005) Abstr. IAU Symp. 229, p. 60-61.]
[Polishook, D.; Brosch, N. (2008) Icarus 194, 111-124.]
[Warner, Brian D. (2014) Minor Planet Bull. 41, 213-224.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
[Vaduvescu, O.; Aznar Macias, A.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]
[Aznar Macias, A.; Predatu, M.; Vaduvescu, O.; Oey, J. (2018) arXiv:1801.09420. Romanian J. Phys. 62, 904 (2017).]
[Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.]
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46-4, submitted. (NEA Gaggle) http://www.planetarysciences.org/lightcurves.html] |
| geometric albedo |
albedo |
0.056 |
|
0.020 |
urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M) |
|
| SMASSII spectral type |
spec_B |
K |
|
n/a |
Binzel et al. (2001) Icarus 151, 139-149 |
|
|
| 85989 (1999 JD6) Discovered 1999-May-12 by LONEOS at Anderson Mesa |
| Reference: 20040830/Numbers.arc | Last Updated: 2004-09-06 |
|
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