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JPL Small-Body Database Browser
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58991 (1998 SJ4)
Classification: Main-belt Asteroid          SPK-ID: 2058991
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 .2141751871970854 4.0561e-08  
a 2.423000813670107 8.1491e-09 au
q 1.904054160823622 1.001e-07 au
i 1.714989178146015 5.5696e-06 deg
node 29.16543417364894 0.00012737 deg
peri 29.78842574567714 0.00012804 deg
M 121.2057787906162 1.2711e-05 deg
tp 2458136.679870862952
(2018-Jan-18.17987086)
4.773e-05 TDB
period 1377.617867360829
3.77
6.9499e-06
1.903e-08
d
yr
n .2613206525040719 1.3183e-09 deg/d
Q 2.941947466516593 9.8944e-09 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      9997 days (27.37 yr)  
   first obs. used      1991-12-27  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56502  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:14:14  

Additional Information
 Earth MOID = .916299 au 
 Jupiter MOID = 2.40421 au 
 T_jup = 3.480 
[ 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 15.7   n/a MPO272914  

58991 (1998 SJ4)          Discovered 1998-Sep-19 by Dillon, W. G. at Needville
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SJ4 = 2000 EV62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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