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JPL Small-Body Database Browser
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442568 (2012 BO21)
Classification: Main-belt Asteroid          SPK-ID: 2442568
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08776275755907569 1.1415e-07  
a 3.097385060829855 1.1008e-07 au
q 2.825550006669141 4.2594e-07 au
i 9.437602515043944 7.394e-06 deg
node 300.6512702448512 5.3953e-05 deg
peri 101.3306997114038 8.8842e-05 deg
M 199.0386753379736 8.0048e-05 deg
tp 2459490.746474797821
(2021-Oct-03.24647480)
0.00048301 TDB
period 1991.091534566779
5.45
0.00010614
2.906e-07
d
yr
n .1808053491013052 9.6383e-09 deg/d
Q 3.369220114990568 1.1974e-07 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      4897 days (13.41 yr)  
   first obs. used      2006-02-02  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60616  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:47  

Additional Information
 Earth MOID = 1.85353 au 
 Jupiter MOID = 1.9859 au 
 T_jup = 3.196 
[ 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 MPO437721  

442568 (2012 BO21)          Discovered 2010-Nov-11 by CSS at Catalina
Reference: Last Updated: 2015-09-02

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