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JPL Small-Body Database Browser
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305631 (2009 BN12)
Classification: Main-belt Asteroid          SPK-ID: 2305631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04835805450864818 5.7798e-08  
a 2.593309385647199 3.3872e-08 au
q 2.467901989018283 1.4091e-07 au
i 12.01183452820032 1.0401e-05 deg
node 19.02504441482007 3.0804e-05 deg
peri 250.8745276255189 0.00020082 deg
M 29.53296848613426 0.00018777 deg
tp 2458475.363349593298
(2018-Dec-22.86334959)
0.00079726 TDB
period 1525.38659185457
4.18
2.9885e-05
8.182e-08
d
yr
n .236005745640068 4.6238e-09 deg/d
Q 2.718716782276115 3.551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      8217 days (22.50 yr)  
   first obs. used      1997-04-30  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44528  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:40:07  

Additional Information
 Earth MOID = 1.48243 au 
 Jupiter MOID = 2.32394 au 
 T_jup = 3.386 
[ 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 16.7   n/a MPO450229  

305631 (2009 BN12)          Discovered 2009-Jan-26 by Apitzsch, R. at Wildberg
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 BN12 = 1997 HL16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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