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295556 (2008 SJ54)
Classification: Main-belt Asteroid          SPK-ID: 2295556
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 .1587581406873278 7.1654e-08  
a 2.184406144068961 1.8096e-08 au
q 1.837613886130598 1.6303e-07 au
i 1.375820145216742 6.9953e-06 deg
node 9.721912829473142 0.00025645 deg
peri 147.8211441353837 0.00025718 deg
M 89.60029977370505 2.2076e-05 deg
tp 2458707.001779197770
(2019-Aug-11.50177920)
6.9924e-05 TDB
period 1179.229977529724
3.23
1.4653e-05
4.012e-08
d
yr
n .3052839622972743 3.7935e-09 deg/d
Q 2.531198402007325 2.0969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      7924 days (21.69 yr)  
   first obs. used      1997-04-03  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55715  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:38:10  

Additional Information
 Earth MOID = .847031 au 
 Jupiter MOID = 2.45223 au 
 T_jup = 3.661 
[ 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 17.8   n/a MPO471116  

295556 (2008 SJ54)          Discovered 2008-Sep-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 SJ54 = 2000 CO122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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