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268468 (2005 WH205)
Classification: Main-belt Asteroid          SPK-ID: 2268468
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452467968086496 9.2568e-08  
a 2.625676392788317 2.9809e-08 au
q 2.244305307279724 2.5194e-07 au
i 1.181953091670983 6.2013e-06 deg
node 265.8915291358607 0.00044399 deg
peri 230.390983459927 0.00044456 deg
M 357.6055844619388 2.2671e-05 deg
tp 2458610.836112971665
(2019-May-07.33611297)
9.7937e-05 TDB
period 1554.032961552062
4.25
2.6464e-05
7.245e-08
d
yr
n .2316553180702529 3.9449e-09 deg/d
Q 3.007047478296909 3.4138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      2001-12-17  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68798  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:53:33  

Additional Information
 Earth MOID = 1.25877 au 
 Jupiter MOID = 2.02827 au 
 T_jup = 3.387 
[ 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 17.1   n/a MPO418425  
diameter diameter 2.346 km 0.434 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268468 (2005 WH205)          Discovered 2005-Nov-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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