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441864 (2009 XG)
Classification: Main-belt Asteroid          SPK-ID: 2441864
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149321574550144 3.5364e-08  
a 2.256650176473439 1.5574e-08 au
q 1.997288503070108 8.2796e-08 au
i 5.790939563810945 4.9482e-06 deg
node 86.22655323235291 5.0265e-05 deg
peri 30.04408670557546 5.7339e-05 deg
M 112.321462904871 2.7647e-05 deg
tp 2459010.173021060474
(2020-Jun-09.67302106)
9.3635e-05 TDB
period 1238.211369593889
3.39
1.2818e-05
3.509e-08
d
yr
n .2907419596042584 3.0098e-09 deg/d
Q 2.516011849876771 1.7364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      5229 days (14.32 yr)  
   first obs. used      2007-02-16  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56534  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 07:58:04  

Additional Information
 Earth MOID = 1.01646 au 
 Jupiter MOID = 2.56339 au 
 T_jup = 3.607 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO503571  

441864 (2009 XG)          Discovered 2009-Nov-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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