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JPL Small-Body Database Browser
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65224 (2002 EJ44)
Classification: Jupiter Trojan          SPK-ID: 2065224
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04318918416836869 8.3719e-08  
a 5.242625428572532 1.3078e-07 au
q 5.01620071341214 3.9629e-07 au
i 15.86869730623193 7.022e-06 deg
node 179.202602437453 1.928e-05 deg
peri 25.63502105832415 8.0394e-05 deg
M 162.9973564592691 7.6604e-05 deg
tp 2457015.320729794210
(2014-Dec-23.82072979)
0.00091785 TDB
period 4384.516122214961
12.00
0.00016406
4.492e-07
d
yr
n .0821071219640392 3.0723e-09 deg/d
Q 5.469050143732924 1.3643e-07 au
  Orbit Determination Parameters
   # obs. used (total)      467  
   data-arc span      10398 days (28.47 yr)  
   first obs. used      1991-05-04  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55252  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 07:38:39  

Additional Information
 Earth MOID = 4.02094 au 
 Jupiter MOID = .428039 au 
 T_jup = 2.922 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6   n/a MPO453046  
diameter diameter 15.990 km 1.163 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.076   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

65224 (2002 EJ44)          Discovered 2002-Mar-13 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 EJ44 = 2001 DE13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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