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312286 (2008 BR20)
Classification: Main-belt Asteroid          SPK-ID: 2312286
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1897358304547085 7.6047e-08  
a 2.690570439412978 2.5434e-08 au
q 2.180072822694067 2.0335e-07 au
i 14.85890395227976 7.6679e-06 deg
node 129.4457646190663 2.3472e-05 deg
peri 11.35410898409044 2.673e-05 deg
M 280.6545908592003 1.5322e-05 deg
tp 2459355.791059923909
(2021-May-21.29105992)
7.1076e-05 TDB
period 1611.999773618134
4.41
2.2858e-05
6.258e-08
d
yr
n .2233250933974884 3.1667e-09 deg/d
Q 3.201068056131889 3.026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      5736 days (15.70 yr)  
   first obs. used      2004-03-15  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:45:14  

Additional Information
 Earth MOID = 1.19544 au 
 Jupiter MOID = 1.84438 au 
 T_jup = 3.299 
[ 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 16.0   n/a MPO494654  

312286 (2008 BR20)          Discovered 2008-Jan-30 by CSS at Catalina
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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