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390031 (2012 UL41)
Classification: Main-belt Asteroid          SPK-ID: 2390031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04768493229339876 9.0731e-08  
a 2.708419048171702 5.6623e-08 au
q 2.579268269237483 2.7717e-07 au
i 4.668616916161214 9.6631e-06 deg
node 191.9122018141822 6.9144e-05 deg
peri 205.8457884344388 0.00013412 deg
M 248.4969490770764 0.00012417 deg
tp 2459504.762260091887
(2021-Oct-17.26226009)
0.00057429 TDB
period 1628.066784993757
4.46
5.1055e-05
1.398e-07
d
yr
n .2211211501384327 6.9342e-09 deg/d
Q 2.837569827105921 5.9323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      5642 days (15.45 yr)  
   first obs. used      2003-11-20  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47123  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:30:13  

Additional Information
 Earth MOID = 1.5865 au 
 Jupiter MOID = 2.36009 au 
 T_jup = 3.358 
[ 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 16.8   n/a MPO472008  

390031 (2012 UL41)          Discovered 2012-Sep-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

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