+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04762581087420733 4.2289e-08   a 5.147933894027413 7.6301e-08 au q 4.902759367997541 2.5245e-07 au i 3.527179641524787 4.3335e-06 deg node 342.3715480158236 6.8747e-05 deg peri 6.705823862529363 8.4804e-05 deg M 247.0809789542112 5.2308e-05 deg tp 2460338.673645708996 (2024-Jan-29.17364571) 0.00063408 TDB period 4266.265399696402 11.68 9.4849e-05 2.597e-07 d yr n .08438293595743447 1.876e-09 deg/d Q 5.393108420057285 7.9934e-08 au   Orbit Determination Parameters    # obs. used (total)      1690      data-arc span      11599 days (31.76 yr)      first obs. used      1988-09-14      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4981      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 17:16:08   Additional Information  Earth MOID = 3.89624 au   Jupiter MOID = .00578319 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 11.3   n/a MPO473922   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 ] 2020-Oct-29 05:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin