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5130 Ilioneus (1989 SC7)
Classification: Jupiter Trojan          SPK-ID: 2005130
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01126255720787817 4.643e-08  
a 5.20333675419674 8.6463e-08 au
q 5.144733876330744 2.644e-07 au
i 15.74087583555833 5.1859e-06 deg
node 242.5241154383516 1.6827e-05 deg
peri 102.3642925451308 0.00027408 deg
M 223.5270188523915 0.00027714 deg
tp 2460643.984094533407
(2024-Nov-29.48409453)
0.0033609 TDB
period 4335.321680942079
11.87
0.00010806
2.959e-07
d
yr
n .08303882075984056 2.0698e-09 deg/d
Q 5.261939632062735 8.7436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2047  
   data-arc span      23564 days (64.51 yr)  
   first obs. used      1955-12-11  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43327  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:16:54  

Additional Information
 Earth MOID = 4.17828 au 
 Jupiter MOID = .142731 au 
 T_jup = 2.925 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.8   n/a MPO473837  
diameter diameter 60.711 km 0.982 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 14.768 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Stephens, R.D.; Coley, D.R.; French, L.M. (2016) Minor Planet Bull. 43, 265-270.]
[Stephens, R.D. (2017) Minor Planet Bull. 44, 123-125.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
[Stephens, R.D.; Warner, B.D. (2018) Minor Planet Bull. 45, 124-128.]
geometric albedo albedo 0.069   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

5130 Ilioneus (1989 SC7)          Discovered 1989-Sep-30 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 SC7 = 1990 VE8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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