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201381 (2002 UJ39)
Classification: Main-belt Asteroid          SPK-ID: 2201381
[ 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 .1998070037070793 4.1027e-08  
a 3.074925782467411 1.8946e-08 au
q 2.460534075250952 1.259e-07 au
i 2.721183386600494 5.8709e-06 deg
node 134.6763813925823 0.00010366 deg
peri 333.0792038871417 0.00010492 deg
M 50.29841566718159 1.5016e-05 deg
tp 2458725.329300016971
(2019-Aug-29.82930002)		 8.1497e-05 TDB
period 1969.474598352517
5.39		 1.8202e-05
4.983e-08		 d
yr
n .1827898670544638 1.6894e-09 deg/d
Q 3.689317489683871 2.2731e-08 au
   Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      6412 days (17.56 yr)  
   first obs. used      2002-10-31  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51673  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:05:57  

Additional Information
 Earth MOID = 1.47768 au 
 Jupiter MOID = 1.45332 au 
 T_jup = 3.197 
[ 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 15.3   n/a MPO325842  
diameter diameter 5.345 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201381 (2002 UJ39)          Discovered 2002-Oct-31 by NEAT at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

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