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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09798335658246733 7.582e-08  
a 5.240645375182818 9.8675e-08 au
q 4.727149350664021 3.8573e-07 au
i 7.957608701362236 8.3466e-06 deg
node 220.1156874509658 4.1161e-05 deg
peri 160.4359034780535 5.4918e-05 deg
M 75.91560974742943 3.3832e-05 deg
tp 2456476.431491958113
(2013-Jul-02.93149196)
0.00041247 JED
period 4382.032417336195
12.00
0.00012376
3.388e-07
d
yr
n .08215365969812732 2.3203e-09 deg/d
Q 5.754141399701614 1.0834e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1315  
   data-arc span      22695 days (62.14 yr)  
   first obs. used      1953-10-31  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54204  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:52:01  

Additional Information
 Earth MOID = 3.72984 au 
 Jupiter MOID = .217443 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. 2015-December); 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. (2015) Minor Planet Bul. 42, 216-224.]

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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