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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2068278541272471 5.0782e-08  
a 2.362368338716337 1.2012e-08 au
q 1.873764764561487 1.1696e-07 au
i 4.411378720489429 5.4624e-06 deg
node 223.4434790219379 7.3328e-05 deg
peri 198.9935399615979 7.4481e-05 deg
M 229.7273608276521 1.4957e-05 deg
tp 2457880.421888384357
(2017-May-06.92188838)
5.6544e-05 JED
period 1326.23305182138
3.63
1.0116e-05
2.77e-08
d
yr
n .2714455046234857 2.0704e-09 deg/d
Q 2.850971912871187 1.4497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      822  
   data-arc span      21791 days (59.66 yr)  
   first obs. used      1955-12-12  
   last obs. used      2015-08-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55988  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:27:36  

Additional Information
 Earth MOID = .886381 au 
 Jupiter MOID = 2.48549 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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