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173086 Nireus (2007 RS8)
Classification: Jupiter Trojan          SPK-ID: 2173086
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09672488879624751 1.3132e-07  
a 5.125912350393704 3.5922e-07 AU
q 4.630109048322561 6.5767e-07 AU
i 17.51546131836214 1.3463e-05 deg
node 237.4104406810497 4.1604e-05 deg
peri 185.1659340343905 0.00010305 deg
M 121.2684041848366 8.0549e-05 deg
tp 2455372.591587217393
(2010-Jun-25.09158722)
0.0010074 JED
period 4238.919709195076
11.61
0.00044559
1.22e-06
d
yr
n .08492729862730992 8.9275e-09 deg/d
Q 5.621715652464847 3.9397e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      226  
   data-arc span      5584 days (15.29 yr)  
   first obs. used      1998-11-25  
   last obs. used      2014-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58478  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 13:30:21  

Additional Information
 Earth MOID = 3.64234 AU 
 T_jup = 2.899 
[ 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 12.5 mag n/a MPO260224  

173086 Nireus           Discovered 2007 Sept. 8 by M. Ory at Vicques.
Nireus, the king of Syme island, fought for the Greeks during the Trojan war. Although of low birth, he was considered the most handsome of the Greeks next to Achilles. Nireus was killed by Eurypylos. The name was suggested by A. Martinez.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080321/MPCPages.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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