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212974 (2009 BQ155)
Classification: Main-belt Asteroid          SPK-ID: 2212974
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 .09197094684570686 7.9117e-08  
a 2.757040433590306 3.1421e-08 au
q 2.503472814421108 2.2904e-07 au
i 14.49999939015469 7.9786e-06 deg
node 130.054081116186 3.1753e-05 deg
peri 188.7189169526798 5.3425e-05 deg
M 346.3278450420052 4.5858e-05 deg
tp 2459064.003491071827
(2020-Aug-02.50349107)
0.00021328 TDB
period 1672.103399653869
4.58
2.8585e-05
7.826e-08
d
yr
n .2152976903668285 3.6805e-09 deg/d
Q 3.010608052759505 3.4311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      6432 days (17.61 yr)  
   first obs. used      2002-09-10  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Earth MOID = 1.49064 au 
 Jupiter MOID = 2.27957 au 
 T_jup = 3.291 
[ 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 15.9   n/a MPO475751  

212974 (2009 BQ155)          Discovered 2009-Jan-31 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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