+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3794 Sthenelos (1985 TF3) Classification: Jupiter Trojan          SPK-ID: 2003794 [ 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 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1469497239926561 3.9516e-08   a 5.202500424583159 7.9545e-08 au q 4.437994423118987 2.4381e-07 au i 6.064097164355138 1.7845e-06 deg node 343.174417872689 9.1579e-06 deg peri 35.93166374899489 1.1738e-05 deg M 356.4102725002861 7.4709e-06 deg tp 2459243.719087639938 (2021-Jan-29.21908764) 8.9699e-05 TDB period 4334.276501940028 11.87 9.9404e-05 2.722e-07 d yr n .08305884496267453 1.9049e-09 deg/d Q 5.967006426047329 9.1234e-08 au   Orbit Determination Parameters    # obs. used (total)      2160      data-arc span      26075 days (71.39 yr)      first obs. used      1949-09-23      last obs. used      2021-02-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45367      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 15:33:49   Additional Information  Earth MOID = 3.4412 au   Jupiter MOID = .209814 au   T_jup = 2.967  [ 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 10.52   n/a E2021B10   diameter diameter 34.531 km 0.364 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   rotation period rot_per 12.877 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.] geometric albedo albedo 0.112   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   3794 Sthenelos (1985 TF3)          Discovered 1985-Oct-12 by Shoemaker, C. and Shoemaker, E. at Palomar Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1985 TF3 = 1949 SA = 1973 SU2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-15 19:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin