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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242168738852362 3.224e-08  
a 5.149178333430315 1.1065e-07 au
q 4.50956349777401 2.4436e-07 au
i 22.95447083147781 3.4438e-07 deg
node 280.4398307789289 5.2398e-06 deg
peri 97.21973618513394 1.1206e-05 deg
M 343.3758129668902 1.0445e-05 deg
tp 2459397.580312481785
(2021-Jul-02.08031248)
0.00012295 TDB
period 4267.812456160199
11.68
0.00013757
3.766e-07
d
yr
n .08435234764835384 2.7191e-09 deg/d
Q 5.788793169086619 1.244e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1453  
   data-arc span      24870 days (68.09 yr)  
   first obs. used      1953-01-09  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41193  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:44:14  

Additional Information
 Earth MOID = 3.60903 au 
 Jupiter MOID = .0560449 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 10.88   n/a E2021B10  
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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