+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4829 Sergestus (1988 RM1) Classification: Jupiter Trojan          SPK-ID: 2004829 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04771966196862379 4.371e-08   a 5.167039338164386 8.7155e-08 au q 4.9204699675686 2.7513e-07 au i 8.594594801825114 5.1439e-06 deg node 221.9129485023699 2.7824e-05 deg peri 120.4658517567592 6.271e-05 deg M 269.4413582142629 5.8643e-05 deg tp 2460079.666557216402 (2023-May-15.16655722) 0.00071092 TDB period 4290.037404901684 11.75 0.00010854 2.972e-07 d yr n .08391535225046605 2.1232e-09 deg/d Q 5.413608708760172 9.1314e-08 au   Orbit Determination Parameters    # obs. used (total)      1614      data-arc span      11693 days (32.01 yr)      first obs. used      1988-08-15      last obs. used      2020-08-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51674      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:48:22   Additional Information  Earth MOID = 3.92331 au   Jupiter MOID = .0594372 au   T_jup = 2.975  [ hide covariance matrix ] Orbital Elements at Epoch 2457126.5 (2015-Apr-14.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05100515929565472 4.3857e-08   q 4.878536409483574 2.718e-07 au tp 2455860.267304630559 (2011-Oct-25.76730463) 0.00062056 TDB node 221.9986051528773 2.7847e-05 deg peri 124.4247056333206 5.935e-05 deg i 8.602181546526761 5.149e-06 deg   Orbit Determination Parameters    # obs. used (total)      1614      data-arc span      11693 days (32.01 yr)      first obs. used      1988-08-15      last obs. used      2020-08-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51674      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:48:22   Additional Information  Jupiter MOID = .0594372 au   T_jup = 2.975  Orbit Covariance (6×6)   e q tp node peri i e 1.923453568669932E-15 -1.144743423325159E-14 8.946708838484861E-13 -4.002971564459387E-15 4.082090488111925E-14 1.385124539234521E-15 q -1.144743423325159E-14 7.387652709586722E-14 1.142968221584149E-11 3.953360975837729E-14 1.332640386735041E-12 -1.024708370925375E-14 tp 8.946708838484861E-13 1.142968221584149E-11 3.851007165235183E-7 1.379036191732806E-11 3.253254424467174E-8 -5.825555348510929E-12 node -4.002971564459387E-15 3.953360975837729E-14 1.379036191732806E-11 7.754702642440048E-10 -7.646126210699433E-10 -1.150630093850014E-12 peri 4.082090488111925E-14 1.332640386735041E-12 3.253254424467174E-8 -7.646126210699433E-10 3.522446352257211E-9 4.798795175947227E-13 i 1.385124539234521E-15 -1.024708370925375E-14 -5.825555348510929E-12 -1.150630093850014E-12 4.798795175947227E-13 2.651228886406777E-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 11.2   n/a MPO473833   diameter diameter 32.220 km 0.321 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   geometric albedo albedo 0.068   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)   4829 Sergestus (1988 RM1)          Discovered 1988-Sep-10 by Shoemaker, C. S. at Palomar Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-27 02:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin