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JPL Small-Body Database Browser
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35807 (1999 JS42)
Classification: Main-belt Asteroid          SPK-ID: 2035807
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05587062395836875 4.5831e-08  
a 2.284384665440865 9.8024e-09 au
q 2.156754668821755 1.0522e-07 au
i 5.609987470041875 4.9482e-06 deg
node 233.3936028549856 5.2261e-05 deg
peri 267.3545634573064 7.037e-05 deg
M 4.012961909657089 4.6173e-05 deg
tp 2458586.442282296935
(2019-Apr-12.94228230)
0.00016175 TDB
period 1261.108001280772
3.45
8.1172e-06
2.222e-08
d
yr
n .2854632590027078 1.8374e-09 deg/d
Q 2.412014662059976 1.035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      9302 days (25.47 yr)  
   first obs. used      1993-09-16  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:48:51  

Additional Information
 Earth MOID = 1.17853 au 
 Jupiter MOID = 2.60417 au 
 T_jup = 3.595 
[ 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 15.5   n/a MPO385042  

35807 (1999 JS42)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JS42 = 1997 WL49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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