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136557 Neleus (5214 T-2)
Classification: Jupiter Trojan          SPK-ID: 2136557
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06343109221232389 1.3172e-07  
a 5.203775924983698 2.0187e-07 AU
q 4.873694734433786 6.6386e-07 AU
i 9.963198686930394 1.0776e-05 deg
node 277.793628029349 6.742e-05 deg
peri 163.7233043271029 0.0001622 deg
M 119.4385525386754 0.00013505 deg
tp 2455561.971935644137
(2010-Dec-31.47193564)
0.0016496 JED
period 4335.870555702015
11.87
0.0002523
6.908e-07
d
yr
n .08302830893477006 4.8313e-09 deg/d
Q 5.53385711553361 2.1467e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      14800 days (40.52 yr)  
   first obs. used      1973-09-20  
   last obs. used      2014-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53855  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 05:34:54  

Additional Information
 Earth MOID = 3.89071 AU 
 T_jup = 2.966 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6 mag n/a MPO257632  

136557 Neleus           Discovered 1973 Sept. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Neleus was the father of the Greek Nestor, known for his wisdom. Neleus and his wife Chloris and their other children were first banished to Messina. Later all but Nestor were killed by Heracles.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081212/MPCPages.arcLast Updated: 2008-12-12

Alternate Designations
 5214 T-2 = 2002 GE50 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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