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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1243956065237366 7.423e-08  
a 5.151354195897569 1.5579e-07 au
q 4.510548366280295 4.9364e-07 au
i 22.95495065001837 7.9426e-06 deg
node 280.4426806517454 1.4098e-05 deg
peri 96.98992794044783 3.4886e-05 deg
M 326.7014142843461 3.3544e-05 deg
tp 2459395.506127258805
(2021-Jun-30.00612726)
0.00040362 TDB
period 4270.517884076964
11.69
0.00019372
5.304e-07
d
yr
n .08429890935296035 3.824e-09 deg/d
Q 5.792160025514843 1.7517e-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 = 3.61121 au 
 Jupiter MOID = .0562404 au 
 T_jup = 2.828 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457162.5 (2015-May-20.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122251708533153 7.4431e-08  
q 4.538162631247705 4.9621e-07 au
tp 2455099.295906036345
(2009-Sep-24.79590604)
0.00039682 TDB
node 280.5046274303409 1.4104e-05 deg
peri 95.92626303344707 3.5381e-05 deg
i 22.90955754007222 7.9361e-06 deg
  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
 Jupiter MOID = .0562404 au 
 T_jup = 2.828 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.539914031426237E-15 -3.628902624377402E-14 1.875497159762074E-12 2.631276354206974E-16 -1.443304169799863E-13 -3.763668092818484E-15
q -3.628902624377402E-14 2.462241874796502E-13 -1.996719816647627E-11 1.265729646292444E-14 8.064968335925419E-13 3.917941926964397E-14
tp 1.875497159762074E-12 -1.996719816647627E-11 1.574654476841572E-7 -9.463507945989758E-12 1.266120278071022E-8 -1.221349684008221E-12
node 2.631276354206974E-16 1.265729646292444E-14 -9.463507945989758E-12 1.989245061248865E-10 -1.828960795736295E-10 1.072107632503743E-11
peri -1.443304169799863E-13 8.064968335925419E-13 1.266120278071022E-8 -1.828960795736295E-10 1.251819882392524E-9 -8.749424944682254E-12
i -3.763668092818484E-15 3.917941926964397E-14 -1.221349684008221E-12 1.072107632503743E-11 -8.749424944682254E-12 6.298210273781601E-11

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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