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3317 Paris (1984 KF)
Classification: Jupiter Trojan          SPK-ID: 2003317
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1272997387801774 5.0537e-08  
a 5.221142231749087 8.2358e-08 au
q 4.556492189513276 2.954e-07 au
i 27.87018105009805 5.6199e-06 deg
node 135.9034708307357 8.8602e-06 deg
peri 149.9797773787452 2.3095e-05 deg
M 278.6166982156809 2.4841e-05 deg
tp 2459585.598182845813
0.00030791 TDB
period 4357.593487228402
n .08261440656525627 1.9547e-09 deg/d
Q 5.885792273984899 9.2842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2110  
   data-arc span      20451 days (55.99 yr)  
   first obs. used      1963-08-21  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38857  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:30:41  

Additional Information
 Earth MOID = 3.56462 au 
 Jupiter MOID = .4059 au 
 T_jup = 2.753 
[ 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 8.3   n/a MPO435729  
diameter diameter 118.790 km 1.175 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (  
rotation period rot_per 7.091 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site,]
[Behrend, R. (2009) Observatoire de Geneve web site,]
[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. (2016) Minor Planet Bull. 43, 265-270.]
[Stephens, R.D.; Coley, D.R. (2017) Minor Planet Bull. 44, 252-257.]
geometric albedo albedo 0.055   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (  
SMASSII spectral type spec_B T   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3317 Paris (1984 KF)          Discovered 1984-May-26 by Shoemaker, C. and Shoemaker, E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 KF = 1963 QD = 1982 BN3 = 1982 DC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2019-Dec-15 19:34 UT
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