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30704 Phegeus (3250 T-3)
Classification: Jupiter Trojan          SPK-ID: 2030704
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03890571915984747 8.1732e-08  
a 5.220207112611799 1.7158e-07 AU
q 5.017111200732287 4.2471e-07 AU
i 14.91164776436051 1.3057e-05 deg
node 20.5452746909755 3.257e-05 deg
peri 289.3997400751246 0.00017642 deg
M 134.1917121451585 0.00017456 deg
tp 2455376.622661298503
(2010-Jun-29.12266130)
0.0021223 JED
period 4356.42285642922
11.93
0.00021478
5.88e-07
d
yr
n .08263660619370572 4.0741e-09 deg/d
Q 5.423303024491312 1.7825e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      13619 days (37.29 yr)  
   first obs. used      1977-10-07  
   last obs. used      2015-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56155  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:23:41  

Additional Information
 Earth MOID = 4.04015 AU 
 T_jup = 2.931 
[ 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 11.2 mag n/a MPO279836  

30704 Phegeus           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Phegeus was the oldest son of Dares, a priest of the god Hephaistos. Phegeus was fatally wounded with the spear of Diomedes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 3250 T-3 = 1999 RG246 = 2000 RN38 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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