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JPL Small-Body Database Browser
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379844 (2012 BJ72)
Classification: Jupiter Trojan          SPK-ID: 2379844
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05856771453237329 1.0123e-07  
a 5.24843396531291 2.8883e-07 au
q 4.941045183090451 6.8711e-07 au
i 9.597595872781932 9.0877e-06 deg
node 154.818275743103 4.1499e-05 deg
peri 209.540857108955 0.00010401 deg
M 23.66844752044669 8.5017e-05 deg
tp 2458711.757771221731
(2019-Aug-16.25777122)
0.0010565 TDB
period 4391.804839349059
12.02
0.00036253
9.926e-07
d
yr
n .08197085552949074 6.7665e-09 deg/d
Q 5.555822747535369 3.0575e-07 au
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      6829 days (18.70 yr)  
   first obs. used      2001-02-20  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48284  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:19:24  

Additional Information
 Earth MOID = 3.94184 au 
 Jupiter MOID = .0260174 au 
 T_jup = 2.969 
[ 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 13.4   n/a MPO434349  

379844 (2012 BJ72)          Discovered 2011-Dec-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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