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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03890572036080068 8.3468e-08  
a 5.220207102399042 1.8927e-07 AU
q 5.017111184647639 4.5557e-07 AU
i 14.91165078761965 1.5166e-05 deg
node 20.54527335623982 3.2682e-05 deg
peri 289.3997518418075 0.00020434 deg
M 134.1917023022395 0.00019993 deg
tp 2455376.622785174788
(2010-Jun-29.12278517)
0.0024463 JED
period 4356.422843644929
11.93
0.00023693
6.487e-07
d
yr
n .08263660643620981 4.4943e-09 deg/d
Q 5.423303020150445 1.9664e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      13305 days (36.43 yr)  
   first obs. used      1977-10-07  
   last obs. used      2014-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56249  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 02:39:29  

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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