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JPL Small-Body Database Browser
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185581 (2008 BM20)
Classification: Main-belt Asteroid          SPK-ID: 2185581
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0611429696333694 6.496e-08  
a 2.344828319165352 1.7179e-08 au
q 2.201458552451161 1.5296e-07 au
i 4.267851352951372 7.2781e-06 deg
node 324.3546791896388 7.9013e-05 deg
peri 165.3420038271259 0.00010145 deg
M 159.3402233343371 6.0594e-05 deg
tp 2458420.019114570834
(2018-Oct-28.51911457)
0.00022039 TDB
period 1311.490058075418
3.59
1.4413e-05
3.946e-08
d
yr
n .2744969340661962 3.0167e-09 deg/d
Q 2.488198085879544 1.823e-08 au
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      7169 days (19.63 yr)  
   first obs. used      1999-10-11  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57952  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:07:06  

Additional Information
 Earth MOID = 1.21629 au 
 Jupiter MOID = 2.52695 au 
 T_jup = 3.555 
[ 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 17.1   n/a MPO422723  

185581 (2008 BM20)          Discovered 2008-Jan-30 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 2008 BM20 = 2003 WD115 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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