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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2044513334494375 4.8834e-08  
a 2.399312483272614 2.1456e-08 au
q 1.908769846705647 1.2234e-07 au
i 2.621543469722432 8.2927e-06 deg
node 83.99368164732873 0.00012538 deg
peri 259.9598055964797 0.00012724 deg
M 203.0162925612012 2.5043e-05 deg
tp 2459792.444143239413
(2022-Jul-31.94414324)
9.9601e-05 TDB
period 1357.465020051633
3.72
1.8209e-05
4.985e-08
d
yr
n .2652002038227894 3.5574e-09 deg/d
Q 2.889855119839581 2.5843e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62655  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:55:56  

Additional Information
 Earth MOID = .901413 au 
 Jupiter MOID = 2.52048 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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