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JPL Small-Body Database Browser
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(2011 UB256)
Classification: Mars-crossing Asteroid          SPK-ID: 3585285
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07108735527550934 2.2905e-07  
a 1.523647816506034 1.0059e-08 au
q 1.415335722859316 3.4769e-07 au
i 24.3039812796137 2.376e-05 deg
node 58.78245718953047 1.9087e-05 deg
peri 7.656627607028438 0.00011328 deg
M 330.9026434265264 0.00010772 deg
tp 2458656.023438381478
(2019-Jun-21.52343838)
0.00020561 TDB
period 686.9502996555535
1.88
6.803e-06
1.863e-08
d
yr
n .5240553795238302 5.1898e-09 deg/d
Q 1.631959910152753 1.0774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      5542 days (15.17 yr)  
   first obs. used      2003-03-31  
   last obs. used      2018-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49627  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jul-09 06:01:30  

Additional Information
 Earth MOID = .428408 au 
 Jupiter MOID = 3.56492 au 
 T_jup = 4.399 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.9   n/a E2018N20  

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