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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 124 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1375187222502431 | 3.2404e-08 | |
| a | 2.676252356124544 | 5.9275e-09 | au |
| q | 2.308217551691095 | 8.7249e-08 | au |
| i | 4.943943975294822 | 3.4342e-06 | deg |
| node | 164.0646285833834 | 3.6998e-05 | deg |
| peri | 352.7514861292381 | 3.8658e-05 | deg |
| M | 196.3182599121982 | 1.2279e-05 | deg |
| tp | 2459927.587625643128
(2022-Dec-14.08762564) | 5.554e-05 | TDB |
| period | 1599.149331447221
4.38 | 5.3128e-06
1.455e-08 | d
yr |
| n | .2251196888999741 | 7.4791e-10 | deg/d |
| Q | 3.044287160557994 | 6.7427e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
8.31 |
|
n/a |
E2021B10 |
IRAS observations used: 17 |
| diameter |
diameter |
94.178 |
km |
0.954 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
10.7431 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Gil Hutton, R.; Blain, A. (1988) Minor Planet Bull. 15, 39-40.]
[Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.089 |
|
0.014 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.768 |
|
0.010 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=.00, mean=3.22, max.=9.27) deg. |
| U-B |
UB |
0.269 |
|
0.182 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=.00, mean=3.22, max.=9.27) deg. |
| Tholen spectral type |
spec_T |
T |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
| SMASSII spectral type |
spec_B |
Xk |
|
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) |
|
| 114 Kassandra (A871 OA) Discovered 1871-Jul-23 by Peters, C. H. F. at Clinton |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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