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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2150489522403664 5.1054e-08  
a 3.055548661202661 2.7439e-08 AU
q 2.398456123091575 1.575e-07 AU
i .6586294847261512 6.3165e-06 deg
node 62.77923886046595 0.0005551 deg
peri 253.6108082504132 0.0005555 deg
M 50.78602778570421 1.7054e-05 deg
tp 2456725.283809729056
(2014-Mar-08.78380973)
9.1572e-05 JED
period 1950.887533784031
5.34
2.6279e-05
7.195e-08
d
yr
n .1845313959753115 2.4857e-09 deg/d
Q 3.712641199313748 3.334e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      7232 days (19.80 yr)  
   first obs. used      1995-01-07  
   last obs. used      2014-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58019  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 14:47:20  

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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