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249378 (2009 BJ16)
Classification: Main-belt Asteroid          SPK-ID: 2249378
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763213298957562 8.9703e-08  
a 2.428218608504701 2.2729e-08 au
q 2.000071874175529 2.0869e-07 au
i 3.911823489107708 9e-06 deg
node 138.4522451092282 9.5819e-05 deg
peri 148.8816349246849 9.7984e-05 deg
M 195.4562405931827 1.7762e-05 deg
tp 2459632.197293512787
(2022-Feb-21.69729351)
7.0379e-05 TDB
period 1382.070195092317
3.78
1.9405e-05
5.313e-08
d
yr
n .260478810177911 3.6572e-09 deg/d
Q 2.856365342833873 2.6736e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      6945 days (19.01 yr)  
   first obs. used      1999-08-08  
   last obs. used      2018-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59352  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:17:51  

Additional Information
 Earth MOID = .984964 au 
 Jupiter MOID = 2.31194 au 
 T_jup = 3.485 
[ 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 17.1   n/a MPO450107  
diameter diameter 1.986 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249378 (2009 BJ16)          Discovered 2009-Jan-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 BJ16 = 2006 HE85 = 2010 KF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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