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312941 (1995 BJ12)
Classification: Main-belt Asteroid          SPK-ID: 2312941
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1395309253923245 5.57e-08  
a 2.265455423721445 2.0011e-08 au
q 1.949354332014531 1.2522e-07 au
i 2.185839742116683 1.0313e-05 deg
node 334.5588098188598 0.0001642 deg
peri 261.0897232630915 0.00016869 deg
M 67.34125624144538 4.173e-05 deg
tp 2458767.524409202605
(2019-Oct-11.02440920)
0.00014322 TDB
period 1245.465519478137
3.41
1.6502e-05
4.518e-08
d
yr
n .2890485480086544 3.8299e-09 deg/d
Q 2.581556515428359 2.2804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      8854 days (24.24 yr)  
   first obs. used      1995-01-31  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:49:12  

Additional Information
 Earth MOID = .939263 au 
 Jupiter MOID = 2.421 au 
 T_jup = 3.603 
[ 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 17.6   n/a MPO427651  

312941 (1995 BJ12)          Discovered 1995-Jan-31 by Spacewatch at Kitt Peak
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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