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221949 (1993 SJ9)
Classification: Main-belt Asteroid          SPK-ID: 2221949
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598733259372951 1.0515e-07  
a 3.020194015205693 4.8957e-08 au
q 2.537345553018845 3.2446e-07 au
i 15.04029660237424 1.2198e-05 deg
node 191.6918566970916 3.0812e-05 deg
peri 173.0891683927526 4.2397e-05 deg
M 131.477547128549 2.6503e-05 deg
tp 2456900.335990060167
(2014-Aug-30.83599006)
0.00014178 JED
period 1917.126148785658
5.25
4.6615e-05
1.276e-07
d
yr
n .1877810702378821 4.5659e-09 deg/d
Q 3.50304247739254 5.6784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      8155 days (22.33 yr)  
   first obs. used      1993-09-17  
   last obs. used      2016-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62884  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 10:35:45  

Additional Information
 Earth MOID = 1.53551 au 
 Jupiter MOID = 1.96006 au 
 T_jup = 3.175 
[ 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 15.2 mag n/a MPO367477  

221949 (1993 SJ9)          Discovered 1993-Sep-22 by Debehogne, H., Elst, E. W. at La Silla
Reference: 20091102/Numbers.arcLast Updated: 2009-11-04

[ show close-approach data ]
Alternate Designations
 1993 SJ9 = 1998 QV94 = 2004 XD67 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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