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15781 (1993 OJ7)
Classification: Main-belt Asteroid          SPK-ID: 2015781
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09656943634811599 2.6056e-08  
a 2.302015382080358 6.9502e-09 au
q 2.079711054168165 6.0254e-08 au
i 5.855924886251796 3.6538e-06 deg
node 297.5396705511824 2.8706e-05 deg
peri 118.0758804228541 3.461e-05 deg
M 141.8245116739137 1.9258e-05 deg
tp 2458497.914962671760
(2019-Jan-14.41496267)
6.7865e-05 TDB
period 1275.735846382934
3.49
5.7775e-06
1.582e-08
d
yr
n .2821900795691367 1.278e-09 deg/d
Q 2.524319709992551 7.6214e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1953  
   data-arc span      14938 days (40.90 yr)  
   first obs. used      1979-07-24  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:52:36  

Additional Information
 Earth MOID = 1.09926 au 
 Jupiter MOID = 2.73688 au 
 T_jup = 3.578 
[ 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 14.2   n/a MPO358784  

15781 (1993 OJ7)          Discovered 1993-Jul-20 by Elst, E. W. at La Silla
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 OJ7 = 1979 ON2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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