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312287 (2008 BS20)
Classification: Main-belt Asteroid          SPK-ID: 2312287
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089007321030689 8.5228e-08  
a 2.691244918973146 3.1203e-08 au
q 2.398166377028306 2.2692e-07 au
i 2.385952208295379 8.8381e-06 deg
node 339.5260365537704 0.00013511 deg
peri 215.7262232113975 0.00013769 deg
M 249.801719606374 2.5339e-05 deg
tp 2459494.128900017580
(2021-Oct-06.62890002)
0.00011511 TDB
period 1612.605962375866
4.42
2.8045e-05
7.678e-08
d
yr
n .22324114408557 3.8824e-09 deg/d
Q 2.984323460917986 3.4601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      4731 days (12.95 yr)  
   first obs. used      2006-11-13  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:45:13  

Additional Information
 Earth MOID = 1.39749 au 
 Jupiter MOID = 1.97849 au 
 T_jup = 3.362 
[ 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 16.8   n/a MPO455301  

312287 (2008 BS20)          Discovered 2008-Jan-30 by Spacewatch at Kitt Peak
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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