+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4063 Euforbo (1989 CG2) Classification: Jupiter Trojan          SPK-ID: 2004063 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 78 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1189089421832731 2.5131e-08   a 5.185890552638108 7.7663e-08 au q 4.569241792745681 1.8356e-07 au i 18.94106365106811 3.1161e-07 deg node 113.5129714197443 2.3342e-06 deg peri 318.3773445115712 1.0404e-05 deg M 308.267209057754 1.3587e-05 deg tp 2459820.364629082368 (2022-Aug-28.86462908) 0.00016954 TDB period 4313.536200255975 11.81 9.6898e-05 2.653e-07 d yr n .0834582076716168 1.8748e-09 deg/d Q 5.802539312530536 8.6898e-08 au   Orbit Determination Parameters    # obs. used (total)      2547      data-arc span      28464 days (77.93 yr)      first obs. used      1943-03-09      last obs. used      2021-02-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4292      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 15:53:51   Additional Information  Earth MOID = 3.60971 au   Jupiter MOID = .450432 au   T_jup = 2.878  [ 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 8.86   n/a E2020-QM5   diameter diameter 95.619 km 0.677 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   rotation period rot_per 8.846 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Brinsfield, J.W. (2011) Minor Planet Bull. 38, 73-74.] [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, 15-22.] [Stephens, R.D.; Coley, D.R.; Warner, B.D.; French, L.M. (2016) Minor Planet Bull. 43, 323-331.] geometric albedo albedo 0.070   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   4063 Euforbo (1989 CG2)          Discovered 1989-Feb-01 by Oss. San Vittore at Bologna Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1989 CG2 = 1943 EV = 1951 XJ = 1970 LC = 1974 VO2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-17 09:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin