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JPL Small-Body Database Browser
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305653 (2009 BW57)
Classification: Main-belt Asteroid          SPK-ID: 2305653
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06971084447851503 7.2256e-08  
a 2.603675750138168 2.6974e-08 au
q 2.422171314847805 1.9058e-07 au
i 14.09819596749228 8.3287e-06 deg
node 313.4489864770687 1.8214e-05 deg
peri 326.3407613401998 7.0122e-05 deg
M 106.1762556844208 6.4918e-05 deg
tp 2458547.911328395405
(2019-Mar-05.41132840)
0.00028063 TDB
period 1534.541981419308
4.20
2.3847e-05
6.529e-08
d
yr
n .2345976873614325 3.6457e-09 deg/d
Q 2.78518018542853 2.8854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      362  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59498  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:49:04  

Additional Information
 Earth MOID = 1.41653 au 
 Jupiter MOID = 2.44634 au 
 T_jup = 3.367 
[ 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 15.8   n/a MPO427633  

305653 (2009 BW57)          Discovered 2009-Jan-20 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 BW57 = 2003 WS143 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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