+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11487 (1988 RG10) Classification: Jupiter Trojan          SPK-ID: 2011487 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04790357305950364 4.2112e-08   a 5.148247062013589 7.5859e-08 au q 4.901627632750047 2.5212e-07 au i 3.527154941135155 4.3097e-06 deg node 342.3697480594427 6.8684e-05 deg peri 6.544037169844734 8.4624e-05 deg M 264.1558380762807 5.2265e-05 deg tp 2460336.427623339891 (2024-Jan-26.92762334) 0.00063138 TDB period 4266.654704830371 11.68 9.4303e-05 2.582e-07 d yr n .08437523655064853 1.8649e-09 deg/d Q 5.394866491277132 7.9493e-08 au   Orbit Determination Parameters    # obs. used (total)      1729      data-arc span      11651 days (31.90 yr)      first obs. used      1988-09-14      last obs. used      2020-08-08      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49558      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:48:17   Additional Information  Earth MOID = 3.89328 au   Jupiter MOID = .00434164 au   T_jup = 2.994  [ 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 11.29   n/a E2021B10   diameter diameter 32.139 km 0.568 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   geometric albedo albedo 0.062   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   11487 (1988 RG10)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo Reference: 19990928/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-13 16:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin