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541891 (2012 BB157)
Classification: Main-belt Asteroid          SPK-ID: 2541891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1693332164291077 9.762e-08  
a 2.637026227403771 2.8682e-08 au
q 2.190490094509574 2.6867e-07 au
i 2.224668262026784 9.9184e-06 deg
node 224.2145166425248 0.00023242 deg
peri 217.2390594020627 0.0002379 deg
M 68.94060232894924 4.1145e-05 deg
tp 2458900.968381326756
(2020-Feb-21.46838133)
0.00017799 TDB
period 1564.120113251286
4.28
2.5519e-05
6.987e-08
d
yr
n .2301613520279332 3.7551e-09 deg/d
Q 3.083562360297967 3.3539e-08 au
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      7618 days (20.86 yr)  
   first obs. used      1999-01-10  
   last obs. used      2019-11-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:48  

Additional Information
 Earth MOID = 1.20642 au 
 Jupiter MOID = 2.15542 au 
 T_jup = 3.375 
[ 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 18.1   n/a MPO504529  

541891 (2012 BB157)          Discovered 2006-Oct-28 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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