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JPL Small-Body Database Browser
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13181 Peneleos (1996 RS28)
Classification: Jupiter Trojan          SPK-ID: 2013181
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1355855920358753 4.9848e-08  
a 5.219439124481697 1.0921e-07 au
q 4.511758380693636 2.6959e-07 au
i 2.544232070894333 6.8976e-06 deg
node 10.92428285724249 0.0001171 deg
peri 104.040963058077 0.00012091 deg
M 209.7863017941129 3.3239e-05 deg
tp 2460417.861065039639
(2024-Apr-17.36106504)
0.00044259 TDB
period 4355.46152733379
11.92
0.0001367
3.743e-07
d
yr
n .08265484558656523 2.5942e-09 deg/d
Q 5.927119868269759 1.2402e-07 au
  Orbit Determination Parameters
   # obs. used (total)      750  
   data-arc span      15241 days (41.73 yr)  
   first obs. used      1978-03-15  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58896  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:31:57  

Additional Information
 Earth MOID = 3.52962 au 
 Jupiter MOID = .196333 au 
 T_jup = 2.980 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0   n/a MPO452356  

13181 Peneleos           Discovered 1996 Sept. 11 at the European Southern Observatory during the Uppsala-DLR Trojan Survey.
Peneleos, leader of Boeotia, killed by Eurypylus, is said to have been one of those inside the wooden horse.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1996 RS28 = 1978 EW8 = 1997 UY11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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