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225276 Leitos (1436 T-2)
Classification: Jupiter Trojan          SPK-ID: 2225276
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566985721740487 7.366e-08  
a 5.201436013904949 1.5339e-07 au
q 4.386378417271368 4.837e-07 au
i 6.108658312214841 1.1736e-05 deg
node 341.5627457902583 4.4906e-05 deg
peri 71.33427498398839 6.018e-05 deg
M 303.5091386154032 3.8103e-05 deg
tp 2459680.421874569212
(2022-Apr-10.92187457)
0.00046943 TDB
period 4332.94640664937
11.86
0.00019166
5.247e-07
d
yr
n .08308434174203989 3.6751e-09 deg/d
Q 6.01649361053853 1.7742e-07 au
  Orbit Determination Parameters
   # obs. used (total)      288  
   data-arc span      17217 days (47.14 yr)  
   first obs. used      1973-09-24  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53561  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:32:48  

Additional Information
 Earth MOID = 3.40396 au 
 Jupiter MOID = .0419784 au 
 T_jup = 2.964 
[ 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 13.4   n/a MPO454617  

225276 Leïtos           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Leïtos, son of Alektryon, leader of the Boeotians, was wounded by Hektor in the Trojan War. The name was suggested by I. J. F. de Yong.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100726/MPCPages.arcLast Updated: 2010-07-28

Alternate Designations
 1436 T-2 = 2008 PW15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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