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JPL Small-Body Database Browser
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13060 (1991 EJ)
Classification: Jupiter Trojan          SPK-ID: 2013060
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1245718879283408 7.4438e-08  
a 5.158737180908506 1.5684e-07 au
q 4.516103550956607 4.9502e-07 au
i 22.95167943455681 7.9409e-06 deg
node 280.4398026130385 1.4092e-05 deg
peri 96.28469609371382 3.4689e-05 deg
M 293.651069428838 3.2817e-05 deg
tp 2459389.260143492481
(2021-Jun-23.76014349)
0.00040071 TDB
period 4279.702011967488
11.72
0.00019517
5.343e-07
d
yr
n .08411800611194863 3.8361e-09 deg/d
Q 5.801370810860406 1.7637e-07 au
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      24406 days (66.82 yr)  
   first obs. used      1953-01-09  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:52:20  

Additional Information
 Earth MOID = 3.61619 au 
 Jupiter MOID = .0572792 au 
 T_jup = 2.828 
[ 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 10.8   n/a MPO502267  
diameter diameter 36.148 km 2.042 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.071   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

13060 (1991 EJ)          Discovered 1991-Mar-10 by McNaught, R. H. at Siding Spring
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 EJ = 1997 WT29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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