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249225 (2008 FJ69)
Classification: Jupiter Trojan          SPK-ID: 2249225
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06771664143558562 5.7861e-08  
a 5.182337706634208 1.5388e-07 au
q 4.831407202355945 3.4947e-07 au
i 7.688632613843509 6.9298e-06 deg
node 68.08797109439486 4.0422e-05 deg
peri 293.8515213897637 7.5084e-05 deg
M 229.5260189424462 6.9451e-05 deg
tp 2460562.238819487376
(2024-Sep-08.73881949)
0.00087885 TDB
period 4309.104163591436
11.80
0.00019192
5.254e-07
d
yr
n .08354404682108146 3.7209e-09 deg/d
Q 5.533268210912472 1.643e-07 au
  Orbit Determination Parameters
   # obs. used (total)      330  
   data-arc span      6874 days (18.82 yr)  
   first obs. used      2001-08-26  
   last obs. used      2020-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5207  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:19:25  

Additional Information
 Earth MOID = 3.83846 au 
 Jupiter MOID = .0279223 au 
 T_jup = 2.978 
[ 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 13.2   n/a MPO437158  
diameter diameter 12.203 km 1.266 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.057   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

249225 (2008 FJ69)          Discovered 2008-Mar-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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