+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3317 Paris (1984 KF) Classification: Jupiter Trojan          SPK-ID: 2003317 [ 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 47 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1276866947021576 4.9242e-08   a 5.220399913833709 7.4383e-08 au q 4.553824303812854 2.9351e-07 au i 27.87111057694077 4.2883e-06 deg node 135.9087795987283 8.8435e-06 deg peri 150.1254676942989 1.9723e-05 deg M 311.5681323623749 1.892e-05 deg tp 2459586.614956079120 (2022-Jan-07.11495608) 0.0002298 TDB period 4356.664206452426 11.93 9.3114e-05 2.549e-07 d yr n .08263202829973056 1.7661e-09 deg/d Q 5.886975523854563 8.3881e-08 au   Orbit Determination Parameters    # obs. used (total)      2692      data-arc span      20876 days (57.16 yr)      first obs. used      1963-08-21      last obs. used      2020-10-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .34872      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:01:19   Additional Information  Earth MOID = 3.56248 au   Jupiter MOID = .404459 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 8.4   n/a MPO473811   diameter diameter 118.790 km 1.175 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   rotation period rot_per 7.0812 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [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.] [Stephens, R. D.; Warner, B. D. (2019) MPB 46, 315-317.] [Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Franco, L.; Marchini, A.; Scarfi, G.; Papini, R.; et al. (2020) Minor Planet Bull. 47, 270-272.] [Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 285-289.] geometric albedo albedo 0.055   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   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.DB Last 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 ] 2021-Jan-28 04:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin