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(2009 UB2)
Classification: Main-belt Asteroid          SPK-ID: 3472335
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1958409448290254 1.2469e-07  
a 2.64585244760945 6.3277e-08 au
q 2.127686204391426 3.1175e-07 au
i 11.09651441354599 9.0818e-06 deg
node 264.5034710326088 5.4677e-05 deg
peri 36.52557190168834 6.9664e-05 deg
M 226.9558707506102 6.0856e-05 deg
tp 2459581.451761875755
(2022-Jan-01.95176188)
0.00028372 TDB
period 1571.979428594225
4.30
5.6392e-05
1.544e-07
d
yr
n .2290106304520394 8.2154e-09 deg/d
Q 3.164018690827475 7.567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      7200 days (19.71 yr)  
   first obs. used      2000-06-11  
   last obs. used      2020-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60907  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-16 06:45:26  

Additional Information
 Earth MOID = 1.12283 au 
 Jupiter MOID = 2.07334 au 
 T_jup = 3.339 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   .20669 E2019-YB0 autocmod 2.6n
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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