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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2150489252215047 6.1138e-08  
a 3.055548680279043 3.6011e-08 AU
q 2.398456220623047 1.9866e-07 AU
i .6586320313028466 6.7705e-06 deg
node 62.77943676493612 0.00057798 deg
peri 253.6106155696929 0.00057837 deg
M 50.78601732306065 2.1274e-05 deg
tp 2456725.283863850162
(2014-Mar-08.78386385)
0.00011274 JED
period 1950.887552053684
5.34
3.4488e-05
9.442e-08
d
yr
n .1845313942472137 3.2622e-09 deg/d
Q 3.712641139935038 4.3756e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1995-01-07  
   last obs. used      2014-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .587  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 15:01:10  

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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