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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2000180378266474 4.7996e-08  
a 3.075890832287143 2.9347e-08 au
q 2.460657183444095 1.5748e-07 au
i 2.720879047092716 5.9513e-06 deg
node 134.6776456963038 0.00013091 deg
peri 333.1500771713929 0.00013218 deg
M 337.1447221126528 2.0516e-05 deg
tp 2458725.594670832063
(2019-Aug-30.09467083)
0.00011343 TDB
period 1970.401835475986
5.39
2.82e-05
7.721e-08
d
yr
n .1827038492953066 2.6148e-09 deg/d
Q 3.691124481130191 3.5217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      5906 days (16.17 yr)  
   first obs. used      2002-10-31  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54398  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:01:51  

Additional Information
 Earth MOID = 1.47802 au 
 Jupiter MOID = 1.45237 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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