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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070251599467344 5.0803e-08  
a 2.362039172082794 1.2125e-08 AU
q 1.873037634681902 1.1698e-07 AU
i 4.411851365362029 5.4739e-06 deg
node 223.4476577815629 7.5212e-05 deg
peri 199.0196889830949 7.6397e-05 deg
M 121.0913239086358 1.4868e-05 deg
tp 2456554.495133924604
(2013-Sep-18.99513392)
5.3873e-05 JED
period 1325.955870366794
3.63
1.021e-05
2.795e-08
d
yr
n .2715022483368279 2.0906e-09 deg/d
Q 2.851040709483687 1.4635e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      21713 days (59.45 yr)  
   first obs. used      1955-12-12  
   last obs. used      2015-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56472  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:05:07  

Additional Information
 Earth MOID = .886225 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 14.8 mag n/a MPO337337  

9355 (1991 XO2)          Discovered 1991-Dec-05 by Ueda, S., Kaneda, H. at Kushiro
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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