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351680 (2006 BL21)
Classification: Main-belt Asteroid          SPK-ID: 2351680
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1834093363088799 5.3059e-08  
a 2.359198128155103 2.4063e-08 au
q 1.926499165249024 1.177e-07 au
i 4.094625615109468 5.4288e-06 deg
node 306.8682908961085 7.6945e-05 deg
peri 333.9217673041906 7.8635e-05 deg
M 208.2757418122572 1.5647e-05 deg
tp 2459558.324482691777
(2021-Dec-09.82448269)
6.0856e-05 TDB
period 1323.56431441932
3.62
2.025e-05
5.544e-08
d
yr
n .2719928273058198 4.1613e-09 deg/d
Q 2.791897091061182 2.8476e-08 au
  Orbit Determination Parameters
   # obs. used (total)      191  
   data-arc span      6098 days (16.70 yr)  
   first obs. used      2003-04-25  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51083  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 08:31:54  

Additional Information
 Earth MOID = .91106 au 
 Jupiter MOID = 2.35526 au 
 T_jup = 3.526 
[ 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 17.0   n/a MPO455545  

351680 (2006 BL21)          Discovered 2006-Jan-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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