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332139 (2005 WY157)
Classification: Main-belt Asteroid          SPK-ID: 2332139
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2427347093677181 1.7173e-07  
a 2.583004937562259 4.718e-08 au
q 1.956019984747703 4.758e-07 au
i 27.95901566368016 8.9789e-06 deg
node 108.099546617065 1.8413e-05 deg
peri 280.2661271813902 2.9656e-05 deg
M 226.1955021204408 1.4139e-05 deg
tp 2459564.078599186277
(2021-Dec-15.57859919)
5.3073e-05 TDB
period 1516.304002647839
4.15
4.1544e-05
1.137e-07
d
yr
n .2374194088859171 6.5049e-09 deg/d
Q 3.209989890376815 5.8632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      6679 days (18.29 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 21:27:59  

Additional Information
 Earth MOID = 1.14291 au 
 Jupiter MOID = 2.54866 au 
 T_jup = 3.222 
[ 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 15.8   n/a MPO437417  
diameter diameter 3.624 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.093   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

332139 (2005 WY157)          Discovered 2005-Nov-25 by NEAT at Palomar
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 2005 WY157 = 2005 YG128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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