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59643 (1999 JA87)
Classification: Main-belt Asteroid          SPK-ID: 2059643
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1692937570948359 3.3748e-08  
a 2.581120905561173 1.2353e-08 au
q 2.144153249942697 9.129e-08 au
i 13.03167013140155 5.0532e-06 deg
node 98.24743531735542 1.9834e-05 deg
peri 236.8289368460693 2.7169e-05 deg
M 284.4672215658298 2.0132e-05 deg
tp 2459318.292694220153
(2021-Apr-13.79269422)
8.5257e-05 TDB
period 1514.645327378815
4.15
1.0873e-05
2.977e-08
d
yr
n .2376794048696547 1.7063e-09 deg/d
Q 3.01808856117965 1.4444e-08 au
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      10596 days (29.01 yr)  
   first obs. used      1991-06-15  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56494  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:40:05  

Additional Information
 Earth MOID = 1.16267 au 
 Jupiter MOID = 2.37413 au 
 T_jup = 3.368 
[ 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 14.8   n/a MPO468499  

59643 (1999 JA87)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JA87 = 2000 PY11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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