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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 106 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1537308796103311 | 3.6955e-08 | |
| a | 2.804698155193894 | 8.0463e-09 | au |
| q | 2.373529440754464 | 1.0308e-07 | au |
| i | 13.40075448399296 | 3.9572e-06 | deg |
| node | 235.8418838469158 | 1.6941e-05 | deg |
| peri | 151.6340941646642 | 2.1125e-05 | deg |
| M | 345.5034139077014 | 1.3225e-05 | deg |
| tp | 2459069.586128880149
(2020-Aug-08.08612888) | 6.3161e-05 | TDB |
| period | 1715.645755386941
4.70 | 7.3829e-06
2.021e-08 | d
yr |
| n | .2098335270376411 | 9.0298e-10 | deg/d |
| Q | 3.235866869633325 | 9.2833e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
8.7 |
|
n/a |
MPO492751 |
IRAS observations used: 6 |
| diameter |
diameter |
109.494 |
km |
1.003 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
13.018 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Pilcher, F.; Benishek, V. (2011) Minor Planet Bull. 38, 15-16.]
[Avdellidou, C.; Ioannidis, P.; Skoulidou, D.K.; et al. (2012) Minor Planet Bull. 39, 103-104.]
[Pilcher, F. (2012) Minor Planet Bull. 39, 171-173.]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.027 |
|
0.008 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N) |
|
| B-V |
BV |
0.707 |
|
0.021 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=8.48 deg. |
| U-B |
UB |
0.336 |
|
0.032 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=8.48 deg. |
| Tholen spectral type |
spec_T |
C |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
| SMASSII spectral type |
spec_B |
Ch |
|
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) |
|
| 266 Aline (A887 KA) Discovered 1887-May-17 by Palisa, J. at Vienna |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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