+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04820988647475948 4.1587e-08   a 5.148845233478012 7.4817e-08 au q 4.90061998929593 2.5102e-07 au i 3.527157594163417 4.238e-06 deg node 342.3685962876289 6.8503e-05 deg peri 6.422578083408562 8.4052e-05 deg M 280.8499894071181 5.1583e-05 deg tp 2460334.735065309958 (2024-Jan-25.23506531) 0.00062094 TDB period 4267.398336165992 11.68 9.3014e-05 2.547e-07 d yr n .08436053343064265 1.8388e-09 deg/d Q 5.397070477660093 7.8424e-08 au   Orbit Determination Parameters    # obs. used (total)      1740      data-arc span      11964 days (32.76 yr)      first obs. used      1988-09-14      last obs. used      2021-06-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49473      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 16:34:58   Additional Information  Earth MOID = 3.89321 au   Jupiter MOID = .00207217 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-Jul-28 15:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin