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308655 (2006 BT91)
Classification: Main-belt Asteroid          SPK-ID: 2308655
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871468625147469 9.7091e-08  
a 2.548458355733084 2.0962e-08 au
q 2.071522370208147 2.5638e-07 au
i 11.99674260169002 8.0587e-06 deg
node 324.6635056237286 2.6874e-05 deg
peri 39.27968580564018 3.0615e-05 deg
M 319.5440126345602 1.4878e-05 deg
tp 2459167.491760356211
(2020-Nov-13.99176036)
6.2356e-05 TDB
period 1485.98607136189
4.07
1.8334e-05
5.02e-08
d
yr
n .2422633744272341 2.9891e-09 deg/d
Q 3.025394341258022 2.4885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      5796 days (15.87 yr)  
   first obs. used      2004-09-14  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:58:04  

Additional Information
 Earth MOID = 1.08172 au 
 Jupiter MOID = 2.46737 au 
 T_jup = 3.387 
[ 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 16.6   n/a MPO437367  

308655 (2006 BT91)          Discovered 2006-Jan-26 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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