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212972 (2009 BQ123)
Classification: Main-belt Asteroid          SPK-ID: 2212972
[ 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 .09203596852016988 4.4103e-08  
a 3.097530660318299 3.1354e-08 au
q 2.812446425974983 1.4182e-07 au
i 5.362953730694295 5.9816e-06 deg
node 167.7972380856839 5.1998e-05 deg
peri 311.6368680454565 6.2949e-05 deg
M 50.27196197538952 3.2959e-05 deg
tp 2458722.435733730367
(2019-Aug-26.93573373)		 0.00018289 TDB
period 1991.231929759835
5.45		 3.0234e-05
8.278e-08		 d
yr
n .1807926011127292 2.7451e-09 deg/d
Q 3.382614894661616 3.424e-08 au
   Orbit Determination Parameters
   # obs. used (total)      263  
   data-arc span      5864 days (16.05 yr)  
   first obs. used      2004-03-29  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63854  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Earth MOID = 1.83191 au 
 Jupiter MOID = 1.68978 au 
 T_jup = 3.210 
[ 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 16.0   n/a MPO418140  

212972 (2009 BQ123)          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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