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237336 (2009 WC25)
Classification: Main-belt Asteroid          SPK-ID: 2237336
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2328017263798446 6.6905e-08  
a 3.169751574399368 4.1269e-08 au
q 2.431827935683965 2.1842e-07 au
i 24.83834554645493 7.784e-06 deg
node 151.2281156830583 1.0366e-05 deg
peri 330.9488337761425 1.466e-05 deg
M 280.9262598480422 1.0658e-05 deg
tp 2459453.257910179877
(2021-Aug-26.75791018)
6.6229e-05 TDB
period 2061.276567309561
5.64
4.0256e-05
1.102e-07
d
yr
n .1746490527808612 3.4108e-09 deg/d
Q 3.907675213114771 5.0877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      7534 days (20.63 yr)  
   first obs. used      1999-02-12  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51638  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 01:51:43  

Additional Information
 Earth MOID = 1.46847 au 
 Jupiter MOID = 1.23998 au 
 T_jup = 3.019 
[ 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 15.4   n/a MPO494307  
diameter diameter 4.636 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

237336 (2009 WC25)          Discovered 2009-Nov-21 by Mayhill at Mayhill
Reference: 20100330/Numbers.arcLast Updated: 2010-04-05

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