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372712 (2009 XG2)
Classification: Main-belt Asteroid          SPK-ID: 2372712
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05062854401365385 5.7375e-08  
a 2.897584266281882 4.1257e-08 au
q 2.750883793723159 1.6535e-07 au
i 15.53682622658861 6.8014e-06 deg
node 260.456562049629 2.3424e-05 deg
peri 165.9184549219543 8.5002e-05 deg
M 115.4854344479758 7.7765e-05 deg
tp 2458622.567322917831
(2019-May-19.06732292)
0.00039133 TDB
period 1801.575798230265
4.93
3.8477e-05
1.053e-07
d
yr
n .1998250644539283 4.2678e-09 deg/d
Q 3.044284738840605 4.3346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      6029 days (16.51 yr)  
   first obs. used      2003-09-20  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:51:36  

Additional Information
 Earth MOID = 1.76699 au 
 Jupiter MOID = 2.21889 au 
 T_jup = 3.232 
[ 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 15.52   n/a E2021B25  
diameter diameter 5.416 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

372712 (2009 XG2)          Discovered 2009-Dec-11 by Mayhill at Mayhill
Reference: Last Updated: 2013-09-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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