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30705 Idaios (3365 T-3)
Classification: Jupiter Trojan          SPK-ID: 2030705
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 .0597244566211518 1.18e-07  
a 5.209841628980914 1.1382e-07 AU
q 4.898686668607773 6.3034e-07 AU
i 19.74551452012604 1.3449e-05 deg
node 24.17770913526282 1.9039e-05 deg
peri 343.7271770387909 6.6094e-05 deg
M 42.16672828474532 5.9928e-05 deg
tp 2456491.752118266482
(2013-Jul-18.25211827)
0.00072348 JED
period 4343.453828983091
11.89
0.00014233
3.897e-07
d
yr
n .08288334909831074 2.7161e-09 deg/d
Q 5.520996589354056 1.2061e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      21813 days (59.72 yr)  
   first obs. used      1955-02-13  
   last obs. used      2014-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52842  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:57:32  

Additional Information
 Earth MOID = 3.90322 AU 
 T_jup = 2.879 
[ 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 10.3 mag n/a MPO272787  
rotation period rot_per 15.736 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Stephens, R.D.; French, L.M.; Davitt, C.; Coley, D.R. (2014) Minor Planet Bul. 41, 95-100.]

30705 Idaios           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Idaios was a herald of king Priam who tells Priam that Paris and Menelaos want to start a duel. Idaios is the younger son of the Hephaistos priest Dares. Idaios escaped Diomedes with the help of the god Hephaistos, because the god did not want his priest to lose both his sons.
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
 3365 T-3 = 1989 SD7 = 2001 QB72 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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