+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11499 Duras (1989 RL) Classification: Main-belt Asteroid          SPK-ID: 2011499 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1814152400225518 3.6303e-08   a 2.22222728744405 5.5251e-09 au q 1.819081390707723 8.0198e-08 au i 3.096577421329325 4.6226e-06 deg node 176.7431288366139 6.3973e-05 deg peri 155.6141361682301 6.5093e-05 deg M 102.401804926973 1.2105e-05 deg tp 2458656.319507377829 (2019-Jun-21.81950738) 4.0586e-05 TDB period 1209.988216832148 3.31 4.5125e-06 1.235e-08 d yr n .2975235584876277 1.1096e-09 deg/d Q 2.625373184180376 6.5274e-09 au   Orbit Determination Parameters    # obs. used (total)      1489      data-arc span      11397 days (31.20 yr)      first obs. used      1989-09-02      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54046      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:46:10   Additional Information  Earth MOID = .809283 au   Jupiter MOID = 2.73264 au   T_jup = 3.625  [ hide covariance matrix ] Orbital Elements at Epoch 2456844.5 (2014-Jul-06.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1816986594758564 3.6372e-08   q 1.818428377253055 8.0413e-08 au tp 2457447.153279356807 (2016-Feb-28.65327936) 4.0497e-05 TDB node 176.7778321181901 6.3963e-05 deg peri 155.6896956362012 6.508e-05 deg i 3.096580433453985 4.624e-06 deg   Orbit Determination Parameters    # obs. used (total)      1489      data-arc span      11397 days (31.20 yr)      first obs. used      1989-09-02      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54046      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:46:10   Additional Information  Jupiter MOID = 2.73264 au   T_jup = 3.625  Orbit Covariance (6×6)   e q tp node peri i e 1.322956087252462E-15 -2.92022226066848E-15 7.893745966682916E-13 1.248381020363909E-14 2.053136900687713E-13 -3.471305719123209E-16 q -2.92022226066848E-15 6.466295851715095E-15 -1.768772420207369E-12 -2.757646116728042E-14 -4.63862047744882E-13 8.3762382962379E-16 tp 7.893745966682916E-13 -1.768772420207369E-12 1.640034864449842E-9 4.284224621079661E-12 4.94761884561888E-10 -1.085502145010016E-12 node 1.248381020363909E-14 -2.757646116728042E-14 4.284224621079661E-12 4.091249304280932E-9 -4.083596508528857E-9 1.184636829584664E-10 peri 2.053136900687713E-13 -4.63862047744882E-13 4.94761884561888E-10 -4.083596508528857E-9 4.235408362214131E-9 -1.186284044498766E-10 i -3.471305719123209E-16 8.3762382962379E-16 -1.085502145010016E-12 1.184636829584664E-10 -1.186284044498766E-10 2.138128563476046E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.9   n/a MPO502257   11499 Duras           Discovered 1989 Sept. 2 by E. W. Elst at Haute Provence. Marguerite Duras (Donnadieu, 1914-1996), French novelist, became internationally known for the screenplay of Hiroshima mon amour (1959). Her semi-autobiographical novel L´Amant was nominated for the Prix Goncourt in 1984. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20000523/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  1989 RL = 1998 FE29  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-18 12:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin