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JPL Small-Body Database Browser
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136042 (2002 WJ12)
Classification: Main-belt Asteroid          SPK-ID: 2136042
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2625661568966952 5.2695e-08  
a 2.755093212784081 2.6809e-08 au
q 2.031698976011196 1.5145e-07 au
i 17.74613038848788 7.2299e-06 deg
node 117.9006693553364 2.0571e-05 deg
peri 241.9936688792767 2.5141e-05 deg
M 340.9250642248688 1.95e-05 deg
tp 2459089.004113388566
(2020-Aug-27.50411339)
9.141e-05 TDB
period 1670.332272437997
4.57
2.438e-05
6.675e-08
d
yr
n .215525980034229 3.1458e-09 deg/d
Q 3.478487449556966 3.3848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      7409 days (20.28 yr)  
   first obs. used      1999-01-22  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:12:37  

Additional Information
 Earth MOID = 1.08751 au 
 Jupiter MOID = 2.15158 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 15.0   n/a MPO436668  
diameter diameter 5.362 km 0.268 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

136042 (2002 WJ12)          Discovered 2002-Nov-27 by LONEOS at Anderson Mesa
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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