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305637 (2009 BG31)
Classification: Main-belt Asteroid          SPK-ID: 2305637
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2042736704936511 4.8829e-08  
a 2.399651462658104 2.1433e-08 au
q 1.909465850475475 1.2234e-07 au
i 2.62158077170225 8.2928e-06 deg
node 83.99806316815618 0.00012536 deg
peri 259.9398498177891 0.00012722 deg
M 150.0065069687307 2.4623e-05 deg
tp 2458434.745163723787
(2018-Nov-12.24516372)
8.8445e-05 TDB
period 1357.752708033476
3.72
1.8191e-05
4.98e-08
d
yr
n .2651440117703114 3.5523e-09 deg/d
Q 2.889837074840734 2.5811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      7558 days (20.69 yr)  
   first obs. used      1999-05-16  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6266  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:11:16  

Additional Information
 Earth MOID = .903922 au 
 Jupiter MOID = 2.51998 au 
 T_jup = 3.497 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO455251  

305637 (2009 BG31)          Discovered 2009-Jan-16 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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