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4722 Agelaos (4271 T-3)
Classification: Jupiter Trojan          SPK-ID: 2004722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1111044885208774 4.8524e-08  
a 5.206727347877196 7.5145e-08 au
q 4.628236569023636 2.5823e-07 au
i 8.815242778754149 4.635e-06 deg
node 64.98192499153855 2.6811e-05 deg
peri 315.1770220429634 3.4072e-05 deg
M 208.3878399516839 2.4625e-05 deg
tp 2460828.083446751432
(2025-Jun-01.58344675)
0.00032277 TDB
period 4339.55983887338
11.88
9.3944e-05
2.572e-07
d
yr
n .0829577222959695 1.7959e-09 deg/d
Q 5.785218126730757 8.3494e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2353  
   data-arc span      15593 days (42.69 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:12:36  

Additional Information
 Earth MOID = 3.63866 au 
 Jupiter MOID = .236634 au 
 T_jup = 2.964 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.0   n/a MPO435744  
diameter diameter 50.378 km 0.342 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 18.438 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Stephens, R.D.; Coley, D.R.; French, L.M. (2016) Minor Planet Bull. 43, 265-270.]
geometric albedo albedo 0.076   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

4722 Agelaos (4271 T-3)          Discovered 1977-Oct-16 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 4271 T-3 = 1988 TZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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