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392243 (2009 WP68)
Classification: Main-belt Asteroid          SPK-ID: 2392243
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1135025219114727 7.0421e-08  
a 2.241800471676081 1.7557e-08 au
q 1.987350464518516 1.6487e-07 au
i 3.879391453238876 7.2783e-06 deg
node 154.818949737207 0.0001165 deg
peri 321.3142397300736 0.00012726 deg
M 2.641171856487642 4.5227e-05 deg
tp 2458991.505272279928
(2020-May-22.00527228)
0.00015402 TDB
period 1226.009572709902
3.36
1.4403e-05
3.943e-08
d
yr
n .2936355539249799 3.4495e-09 deg/d
Q 2.496250478833645 1.955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      6218 days (17.02 yr)  
   first obs. used      2002-10-30  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:23:00  

Additional Information
 Earth MOID = 1.00525 au 
 Jupiter MOID = 2.57222 au 
 T_jup = 3.622 
[ 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 18.0   n/a MPO455784  
diameter diameter 1.336 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

392243 (2009 WP68)          Discovered 2009-Nov-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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