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233942 (2009 WH6)
Classification: Main-belt Asteroid          SPK-ID: 2233942
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09859294391717967 4.8035e-08  
a 3.0202500122702 3.5035e-08 au
q 2.722474672194583 1.5003e-07 au
i 7.655519979122261 5.012e-06 deg
node 210.0615269458947 3.4763e-05 deg
peri 281.6989894245232 4.4569e-05 deg
M 18.4226278583142 2.7163e-05 deg
tp 2459298.390322623905
(2021-Mar-24.89032262)
0.00014412 TDB
period 1917.179466850832
5.25
3.3359e-05
9.133e-08
d
yr
n .1877758479185768 3.2673e-09 deg/d
Q 3.318025352345817 3.8489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      362  
   data-arc span      6390 days (17.49 yr)  
   first obs. used      2003-09-20  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51383  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:57:21  

Additional Information
 Earth MOID = 1.7504 au 
 Jupiter MOID = 1.78048 au 
 T_jup = 3.226 
[ 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 15.87   n/a MPCxxxxx  

233942 (2009 WH6)          Discovered 2009-Nov-18 by Lowe, A. at Mayhill
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2009 WH6 = 2008 RC51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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