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266647 (2008 SH229)
Classification: Jupiter Trojan          SPK-ID: 2266647
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09461706459929849 8.889e-08  
a 5.17238176126341 1.7601e-07 au
q 4.682986182025717 5.7246e-07 au
i 6.16983068650453 9.3764e-06 deg
node 312.8095516927339 8.2737e-05 deg
peri 98.14651445384433 0.00010012 deg
M 322.6258574864289 5.438e-05 deg
tp 2459446.570004809742
(2021-Aug-20.07000481)
0.00065167 TDB
period 4296.692604337243
11.76
0.00021932
6.005e-07
d
yr
n .0837853747407023 4.2767e-09 deg/d
Q 5.661777340501104 1.9267e-07 au
  Orbit Determination Parameters
   # obs. used (total)      222  
   data-arc span      8803 days (24.10 yr)  
   first obs. used      1996-09-16  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46147  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:24:17  

Additional Information
 Earth MOID = 3.70088 au 
 Jupiter MOID = .137653 au 
 T_jup = 2.980 
[ 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 13.5   n/a MPO418415  
diameter diameter 10.752 km 0.956 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.061   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

266647 (2008 SH229)          Discovered 2008-Sep-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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