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249381 (2009 BJ46)
Classification: Main-belt Asteroid          SPK-ID: 2249381
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09245018605096461 6.5415e-08  
a 2.683343509004748 2.3352e-08 au
q 2.435267902358611 1.7135e-07 au
i 6.624891667855456 6.0213e-06 deg
node 302.2877418970973 5.4416e-05 deg
peri 68.33207853877887 7.5242e-05 deg
M 334.1460975285495 4.4812e-05 deg
tp 2459115.801893966275
(2020-Sep-23.30189397)
0.00019925 TDB
period 1605.509337466388
4.40
2.0958e-05
5.738e-08
d
yr
n .2242279079909349 2.9271e-09 deg/d
Q 2.931419115650885 2.5511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      7599 days (20.80 yr)  
   first obs. used      2000-01-03  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54136  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:18:18  

Additional Information
 Earth MOID = 1.4436 au 
 Jupiter MOID = 2.52244 au 
 T_jup = 3.360 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO433634  
diameter diameter 3.476 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.044   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249381 (2009 BJ46)          Discovered 2009-Jan-16 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

Alternate Designations
 2009 BJ46 = 2007 VG86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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