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JPL Small-Body Database Browser
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438908 (2009 XO)
Classification: Apollo [NEO, PHA]          SPK-ID: 2438908
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 70 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5423187396704728 2.5235e-08  
a 1.859360333670254 6.6312e-08 au
q .850994380920932 4.3741e-08 au
i .3507996013468484 2.3811e-06 deg
node 27.7273545975163 0.0008634 deg
peri 140.7106313873331 0.00086326 deg
M 25.34782632132405 1.1162e-05 deg
tp 2458935.294836004709
(2020-Mar-26.79483600)		 3.1935e-05 TDB
period 926.0699020395745
2.54		 4.9541e-05
1.356e-07		 d
yr
n .3887395532530933 2.0796e-08 deg/d
Q 2.867726286419576 1.0227e-07 au
   Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      3641 days (9.97 yr)  
   first obs. used      2009-12-09  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45591  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-28 08:12:18  

Additional Information
 Earth MOID = .00183733 au 
 Jupiter MOID = 2.10679 au 
 T_jup = 3.803 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.5   n/a MPO346169  

438908 (2009 XO)          Discovered 2009-Dec-09 by OAM at La Sagra
Reference: Last Updated: 2015-07-06

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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