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541853 (2012 BL61)
Classification: Inner Main-belt Asteroid          SPK-ID: 2541853
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05675866538300227 9.1185e-08  
a 1.919158785963134 2.7966e-08 au
q 1.810229894613803 1.8046e-07 au
i 24.12407732644391 1.0985e-05 deg
node 121.5895856496623 1.6338e-05 deg
peri 333.6463742057458 5.7211e-05 deg
M 173.6753606941417 5.6829e-05 deg
tp 2458732.009813143207
(2019-Sep-05.50981314)
0.00015218 TDB
period 971.1018684191196
2.66
2.1226e-05
5.811e-08
d
yr
n .3707129104653591 8.1029e-09 deg/d
Q 2.028087677312464 2.9553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      3623 days (9.92 yr)  
   first obs. used      2010-06-15  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49954  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:39  

Additional Information
 Earth MOID = .834478 au 
 Jupiter MOID = 3.07282 au 
 T_jup = 3.818 
[ 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 18.11   .47699 E2021B25 autocmod 2.8

541853 (2012 BL61)          Discovered 2012-Jan-26 by Crni Vrh at Crni Vrh
Reference: Last Updated: 2019-12-13

Alternate Designations
 2012 BL61 = 2015 KQ155 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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