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JPL Small-Body Database Browser
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312485 (2008 UJ90)
Classification: Inner Main-belt Asteroid          SPK-ID: 2312485
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07135859320264086 5.5846e-08  
a 1.913702754175484 1.3348e-08 au
q 1.777143617829502 1.0371e-07 au
i 24.20678598779087 8.9342e-06 deg
node 55.71508154697563 1.1348e-05 deg
peri 105.8486242030582 7.906e-05 deg
M 231.3061256347341 7.5021e-05 deg
tp 2458946.173052381979
(2020-Apr-06.67305238)
0.00020258 TDB
period 966.9636528644226
2.65
1.0117e-05
2.77e-08
d
yr
n .3722994126341534 3.8951e-09 deg/d
Q 2.050261890521466 1.43e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      6978 days (19.10 yr)  
   first obs. used      2000-09-26  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59981  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:31  

Additional Information
 Earth MOID = .841287 au 
 Jupiter MOID = 3.00982 au 
 T_jup = 3.822 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO402213  

312485 (2008 UJ90)          Discovered 2008-Oct-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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