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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1691193349600727 4.7863e-08  
a 2.580748515796736 1.4738e-08 au
q 2.144294043105997 1.221e-07 au
i 13.03179377394916 5.8874e-06 deg
node 98.24665784390633 2.2667e-05 deg
peri 236.918836118009 2.9781e-05 deg
M 189.2594611745751 2.1266e-05 deg
tp 2459318.709430090298
(2021-Apr-14.20943009)
9.1679e-05 TDB
period 1514.31755230004
4.15
1.2972e-05
3.552e-08
d
yr
n .2377308507407905 2.0365e-09 deg/d
Q 3.017202988487474 1.7231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      752  
   data-arc span      10149 days (27.79 yr)  
   first obs. used      1991-06-15  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60791  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:39:44  

Additional Information
 Earth MOID = 1.16206 au 
 Jupiter MOID = 2.37277 au 
 T_jup = 3.369 
[ 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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