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58993 (1998 SF9)
Classification: Main-belt Asteroid          SPK-ID: 2058993
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .215048916371143 6.168e-08  
a 3.055548686456639 3.6454e-08 AU
q 2.398456252514869 2.0082e-07 AU
i .6586323684388233 6.7847e-06 deg
node 62.77945101369993 0.00057838 deg
peri 253.610603013773 0.00057877 deg
M 50.78601391531514 2.15e-05 deg
tp 2456725.283881482552
(2014-Mar-08.78388148)
0.00011388 JED
period 1950.887557970033
5.34
3.4913e-05
9.559e-08
d
yr
n .1845313936875955 3.3024e-09 deg/d
Q 3.71264112039841 4.4294e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      7140 days (19.55 yr)  
   first obs. used      1995-01-07  
   last obs. used      2014-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58633  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:25:19  

Additional Information
 Earth MOID = 1.38593 AU 
 T_jup = 3.200 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO266216  

58993 (1998 SF9)          Discovered 1998-Sep-17 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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