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JPL Small-Body Database Browser
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441721 (2009 BK37)
Classification: Main-belt Asteroid          SPK-ID: 2441721
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1245007884250703 6.9012e-08  
a 2.513226316064863 4.2619e-08 au
q 2.200327658224152 1.625e-07 au
i 3.082832073372222 1.158e-05 deg
node 108.1243364977748 0.00020227 deg
peri 296.7392993254225 0.00021139 deg
M 19.06646732696718 6.1554e-05 deg
tp 2458923.424995718703
(2020-Mar-14.92499572)
0.00024849 TDB
period 1455.277533348939
3.98
3.7017e-05
1.013e-07
d
yr
n .2473754948800415 6.2924e-09 deg/d
Q 2.826124973905573 4.7925e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      3475 days (9.51 yr)  
   first obs. used      2007-09-11  
   last obs. used      2017-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .75578  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:35:37  

Additional Information
 Earth MOID = 1.21165 au 
 Jupiter MOID = 2.53539 au 
 T_jup = 3.448 
[ 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 17.7   n/a MPO495189  

441721 (2009 BK37)          Discovered 2009-Jan-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2009 BK37 = 2011 QJ16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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