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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1243956440697399 7.1759e-08  
a 5.151354157482013 1.4365e-07 au
q 4.510548139230705 4.7015e-07 au
i 22.95495097595957 7.2385e-06 deg
node 280.442684712337 1.3937e-05 deg
peri 96.98990563678365 3.2244e-05 deg
M 326.7014348680031 2.8643e-05 deg
tp 2459395.505878665593
(2021-Jun-30.00587867)
0.0003422 TDB
period 4270.517836306714
11.69
0.00017863
4.891e-07
d
yr
n .08429891029593263 3.5261e-09 deg/d
Q 5.792160175733319 1.6152e-07 au
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      24679 days (67.57 yr)  
   first obs. used      1953-01-09  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47035  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:39:51  

Additional Information
 Earth MOID = 3.61121 au 
 Jupiter MOID = .0562407 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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