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JPL Small-Body Database Browser
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59521 (1999 JS20)
Classification: Main-belt Asteroid          SPK-ID: 2059521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188929738544953 2.946e-08  
a 2.157759061216236 6.0837e-09 au
q 1.901216669566753 6.4487e-08 au
i 5.467639111208166 4.6499e-06 deg
node 210.4905555807159 3.5794e-05 deg
peri 94.11613658496218 4.2069e-05 deg
M 160.2942971675869 2.2571e-05 deg
tp 2458485.012164442695
(2019-Jan-01.51216444)
7.1822e-05 TDB
period 1157.718172634746
3.17
4.8962e-06
1.341e-08
d
yr
n .3109565078180543 1.3151e-09 deg/d
Q 2.414301452865718 6.807e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1164  
   data-arc span      10227 days (28.00 yr)  
   first obs. used      1992-01-27  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:49:01  

Additional Information
 Earth MOID = .895854 au 
 Jupiter MOID = 2.77681 au 
 T_jup = 3.684 
[ 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 15.4   n/a MPO280111  

59521 (1999 JS20)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JS20 = 1996 KJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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