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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 87 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1122111216372899 | 3.2159e-08 | |
a | 3.425276961113416 | 9.0291e-09 | au |
q | 3.040922791388512 | 1.1104e-07 | au |
i | 3.564043262548921 | 3.7688e-06 | deg |
node | 155.6154970168458 | 5.5462e-05 | deg |
peri | 102.8866311101374 | 5.769e-05 | deg |
M | 354.0758620737663 | 1.6989e-05 | deg |
tp | 2459238.603478754199 (2021-Jan-24.10347875) | 0.00010934 | TDB |
period | 2315.484973901063 6.34 | 9.1555e-06 2.507e-08 | d yr |
n | .1554749886342308 | 6.1475e-10 | deg/d |
Q | 3.80963113083832 | 1.0042e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
6.88 |
|
n/a |
E2021B10 |
IRAS observations used: 17 |
magnitude slope |
G |
0.01 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
diameter |
diameter |
237.26 |
km |
4.2 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 17 |
rotation period |
rot_per |
6.0814 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Schober, H.J.; Scaltriti, F.; Zappala, V.; Harris, A.W. (1980) Astron. Astrophys. 91, 1-6.] [Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.] [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pilcher, F.; Stephens, R.D. (2010) Minor Planet Bull. 37, 8.] [Pilcher, F. (2012) Minor Planet Bull. 39, 57-60.] [Pilcher, F. (2014) Minor Planet Bull. 41, 250-252.] [Franco, L.; Pilcher, F. (2015) Minor Planet Bull. 42, 204-206.] [Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Viikinkoski, M.; Hanus, J.; Kaasalainen, M.; Marchis, F.; Durech, J. (2017) Astron. Astrophys. 607, A117.] |
geometric albedo |
albedo |
0.0706 |
|
0.003 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 17 |
B-V |
BV |
0.690 |
|
0.020 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=17; phase (min.=1.75, mean=10.38, max.=18.00) deg. |
U-B |
UB |
0.271 |
|
0.024 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=1.75, mean=4.51, max.=10.04) deg. |
Tholen spectral type |
spec_T |
P |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
Xc |
|
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) |
|
65 Cybele (A861 EB) Discovered 1861-Mar-08 by Tempel, E. W. at Marseille |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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