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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03766781976197367 8.1432e-08  
a 5.225100149144902 1.4228e-07 au
q 5.028282018488651 4.161e-07 au
i 14.91126228172755 8.0843e-06 deg
node 20.5177530332645 3.1866e-05 deg
peri 288.5017309399172 0.00014185 deg
M 184.7840633145707 0.00014558 deg
tp 2459723.800486312176
(2022-May-24.30048631)
0.0017962 JED
period 4362.549374973315
11.94
0.00017819
4.879e-07
d
yr
n .0825205559999426 3.3707e-09 deg/d
Q 5.421918279801154 1.4764e-07 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      14060 days (38.49 yr)  
   first obs. used      1977-10-07  
   last obs. used      2016-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54989  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:56:37  

Additional Information
 Earth MOID = 4.05032 au 
 Jupiter MOID = .15785 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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