+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   13362 (1998 UQ16) Classification: Jupiter Trojan          SPK-ID: 2013362 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0271579026070011 4.5857e-08   a 5.179711373026193 8.7144e-08 au q 5.039041276025172 2.1787e-07 au i 9.340521283664453 3.8842e-06 deg node 57.89637581995836 2.8616e-05 deg peri 119.2401145625396 8.4575e-05 deg M 185.4827498231478 8.2204e-05 deg tp 2461287.837271821008 (2026-Sep-04.33727182) 0.0010156 TDB period 4305.828891379321 11.79 0.00010866 2.975e-07 d yr n .08360759544364482 2.1099e-09 deg/d Q 5.320381470027214 8.9511e-08 au   Orbit Determination Parameters    # obs. used (total)      1780      data-arc span      11700 days (32.03 yr)      first obs. used      1989-01-31      last obs. used      2021-02-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4795      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 23:54:09   Additional Information  Earth MOID = 4.05148 au   Jupiter MOID = .236413 au   T_jup = 2.973  [ 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 11.08   n/a E2021B10   diameter diameter 28.324 km 5.196 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   rotation period rot_per 15.13 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [French, L.M.; Stephens, R.D.; Coley, D.; Wasserman, L.; Sieben, J. (2015) Icarus 254, 1-17.] geometric albedo albedo 0.088   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   13362 (1998 UQ16)          Discovered 1998-Oct-26 by Korlevic, K. at Visnjan Reference: 20000124/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 22:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin