+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   344008 (2011 SL6) Classification: Main-belt Asteroid          SPK-ID: 2344008 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03380907228907379 4.3047e-08   a 3.000318817415395 3.2259e-08 au q 2.89888082162713 1.2637e-07 au i 11.82731204288182 4.9664e-06 deg node 202.3562445188086 1.9771e-05 deg peri 317.1687375026482 7.651e-05 deg M 64.99528887956671 7.2496e-05 deg tp 2458657.788314264346 (2019-Jun-23.28831426) 0.00038454 TDB period 1898.233071837651 5.20 3.0614e-05 8.382e-08 d yr n .1896500515879694 3.0586e-09 deg/d Q 3.10175681320366 3.3349e-08 au   Orbit Determination Parameters    # obs. used (total)      296      data-arc span      7733 days (21.17 yr)      first obs. used      1999-04-16      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46991      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 17:03:58   Additional Information  Earth MOID = 1.91297 au   Jupiter MOID = 1.88281 au   T_jup = 3.220  [ hide covariance matrix ] Orbital Elements at Epoch 2457168.5 (2015-May-26.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03488632149643334 4.2936e-08   q 2.89576903415377 1.2578e-07 au tp 2456750.498259119876 (2014-Apr-02.99825912) 0.00038727 TDB node 202.3804601600254 1.9772e-05 deg peri 315.6051802618612 7.4466e-05 deg i 11.82706164927661 4.9665e-06 deg   Orbit Determination Parameters    # obs. used (total)      296      data-arc span      7733 days (21.17 yr)      first obs. used      1999-04-16      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46991      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 17:03:58   Additional Information  Jupiter MOID = 1.88281 au   T_jup = 3.220  Orbit Covariance (6×6)   e q tp node peri i e 1.843498977657577E-15 -5.240264040363548E-15 1.445753590656693E-12 8.797057023687405E-15 2.495223475752039E-13 6.597159645905032E-16 q -5.240264040363548E-15 1.582147754475291E-14 -1.00372712532911E-11 -3.022517571607702E-14 -1.777054212950186E-12 1.090179464770621E-15 tp 1.445753590656693E-12 -1.00372712532911E-11 1.499793937253915E-7 8.886562332233347E-11 2.781708034011613E-8 -2.409620490383635E-11 node 8.797057023687405E-15 -3.022517571607702E-14 8.886562332233347E-11 3.909162181028039E-10 -3.661173504468415E-10 -6.966590517970739E-12 peri 2.495223475752039E-13 -1.777054212950186E-12 2.781708034011613E-8 -3.661173504468415E-10 5.545256643316277E-9 2.451712057681666E-12 i 6.597159645905032E-16 1.090179464770621E-15 -2.409620490383635E-11 -6.966590517970739E-12 2.451712057681666E-12 2.466578328261367E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.00   n/a E2021B25   diameter diameter 4.530 km 0.570 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   344008 (2011 SL6)          Discovered 2001-Sep-20 by LINEAR at Socorro Reference: 20121029/Numbers.arc Last Updated: 2012-11-08 [ show close-approach data ] Alternate Designations  2011 SL6 = 2001 SP306 = 2010 ET27  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-02 06:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin