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4348 Poulydamas (1988 RU)
Classification: Jupiter Trojan          SPK-ID: 2004348
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09771712492839818 7.3281e-08  
a 5.240721837806538 9.7082e-08 au
q 4.728613567266612 3.6766e-07 au
i 7.957480124275419 7.7277e-06 deg
node 220.1121214869008 4.1105e-05 deg
peri 160.4634662495546 5.4597e-05 deg
M 92.35272293595041 3.3643e-05 deg
tp 2456476.329214857647
(2013-Jul-02.82921486)
0.00040924 JED
period 4382.128320481903
12.00
0.00012176
3.334e-07
d
yr
n .08215186176027149 2.2827e-09 deg/d
Q 5.752830108346464 1.0657e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      22804 days (62.43 yr)  
   first obs. used      1953-10-31  
   last obs. used      2016-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54455  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:47:48  

Additional Information
 Earth MOID = 3.73161 au 
 Jupiter MOID = .217128 au 
 T_jup = 2.971 
[ 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 9.6 mag n/a MPO347557  
rotation period rot_per 9.908 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
[Stephens, R.D.; Coley, D.R.; French, L.M. (2015) Minor Planet Bul. 42, 216-224.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]
[Stephens, R.D. (2016) http://www.planetarysciences.org/]

4348 Poulydamas (1988 RU)          Discovered 1988-Sep-11 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 RU = 1977 SP1 = 1977 TV4 = 1983 GJ = 1988 PK4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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