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185529 (2007 WE12)
Classification: Main-belt Asteroid          SPK-ID: 2185529
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09577427021415007 7.7796e-08  
a 3.171995421872802 3.558e-08 au
q 2.868199875220309 2.4564e-07 au
i 10.47185440105967 6.366e-06 deg
node 110.2463381504415 3.8445e-05 deg
peri 269.6658326488392 5.0309e-05 deg
M 107.8239663534894 3.2966e-05 deg
tp 2458382.469287724850
(2018-Sep-20.96928772)
0.00018859 TDB
period 2063.465701953875
5.65
3.4718e-05
9.505e-08
d
yr
n .1744637672722738 2.9354e-09 deg/d
Q 3.475790968525294 3.8987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      6806 days (18.63 yr)  
   first obs. used      2001-09-25  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:12:02  

Additional Information
 Earth MOID = 1.89565 au 
 Jupiter MOID = 2.01278 au 
 T_jup = 3.169 
[ 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 15.2   n/a MPO470001  
diameter diameter 4.717 km 0.856 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

185529 (2007 WE12)          Discovered 2007-Nov-17 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 2007 WE12 = 2003 AF63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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