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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5415914056852861 2.4094e-08  
a 1.854663974442429 1.0172e-08 au
q .8501939054502944 4.2881e-08 au
i .3536939265385936 2.4992e-06 deg
node 27.87935358203052 0.00092225 deg
peri 140.4498262426497 0.00092217 deg
M 229.3914999096717 1.3308e-05 deg
tp 2458935.207329244430
(2020-Mar-26.70732924)
3.6832e-05 TDB
period 922.5635272180677
2.53
7.5897e-06
2.078e-08
d
yr
n .3902170304581163 3.2102e-09 deg/d
Q 2.859134043434564 1.5681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      2012 days (5.51 yr)  
   first obs. used      2009-12-09  
   last obs. used      2015-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45167  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:20:35  

Additional Information
 Earth MOID = .00184874 au 
 Jupiter MOID = 2.11704 au 
 T_jup = 3.809 
[ 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

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