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9355 (1991 XO2)
Classification: Main-belt Asteroid          SPK-ID: 2009355
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070160683546265 5.0894e-08  
a 2.362585354453075 1.2669e-08 AU
q 1.873492223221978 1.1722e-07 AU
i 4.411359708247431 5.5042e-06 deg
node 223.4561674778346 8.5088e-05 deg
peri 199.0778732777413 8.6553e-05 deg
M 66.72623927707727 1.6257e-05 deg
tp 2456554.647948948794
(2013-Sep-19.14794895)
5.9712e-05 JED
period 1326.415804896699
3.63
1.0669e-05
2.921e-08
d
yr
n .271408104963011 2.1831e-09 deg/d
Q 2.851678485684173 1.5292e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      735  
   data-arc span      21345 days (58.44 yr)  
   first obs. used      1955-12-12  
   last obs. used      2014-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57567  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:42:12  

Additional Information
 Earth MOID = .886046 AU 
 T_jup = 3.517 
[ 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 14.7 mag n/a MPO236447  

9355 (1991 XO2)          Discovered 1991-Dec-05 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 XO2 = 1962 WX1 = 1962 XG1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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