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296823 (2009 WB25)
Classification: Main-belt Asteroid          SPK-ID: 2296823
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1404287049562066 2.5159e-07  
a 2.549889362823414 2.9617e-08 au
q 2.191811701820515 6.4432e-07 au
i 11.62835091387049 1.1535e-05 deg
node 57.84686969975836 4.4897e-05 deg
peri 317.9560223963728 6.7635e-05 deg
M 265.411457966731 6.9951e-05 deg
tp 2459391.265724685204
(2021-Jun-25.76572469)
0.00028997 TDB
period 1487.237860556033
4.07
2.5912e-05
7.094e-08
d
yr
n .2420594644258228 4.2174e-09 deg/d
Q 2.907967023826313 3.3777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      6374 days (17.45 yr)  
   first obs. used      2001-12-15  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55994  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:44:52  

Additional Information
 Earth MOID = 1.20954 au 
 Jupiter MOID = 2.5685 au 
 T_jup = 3.398 
[ 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 16.1   n/a MPO433912  
diameter diameter 3.881 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

296823 (2009 WB25)          Discovered 2009-Nov-21 by Lowe, A. at Mayhill
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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