+ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03380906581645403 4.4612e-08   a 3.000318824146835 3.4526e-08 au q 2.898880847550909 1.3484e-07 au i 11.82731177565715 5.0971e-06 deg node 202.3562463303399 2.1249e-05 deg peri 317.1687354491677 7.6956e-05 deg M 64.99528746906418 7.2566e-05 deg tp 2458657.788320548393 (2019-Jun-23.28832055) 0.00038483 TDB period 1898.233078225893 5.20 3.2766e-05 8.971e-08 d yr n .1896500509497282 3.2736e-09 deg/d Q 3.101756800742761 3.5694e-08 au   Orbit Determination Parameters    # obs. used (total)      272      data-arc span      7682 days (21.03 yr)      first obs. used      1999-04-16      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46593      source      ORB      producer      Otto Matic      solution date      2020-May-21 22:24:01   Additional Information  Earth MOID = 1.91297 au   Jupiter MOID = 1.88281 au   T_jup = 3.220  [ hide covariance matrix ] Orbital Elements at Epoch 2457002.5 (2014-Dec-11.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03490154117504785 4.4471e-08   q 2.895401459422563 1.3419e-07 au tp 2456749.483379487297 (2014-Apr-01.98337949) 0.00038733 TDB node 202.3819824184677 2.1249e-05 deg peri 315.3932308526873 7.4943e-05 deg i 11.82766398193332 5.0973e-06 deg   Orbit Determination Parameters    # obs. used (total)      272      data-arc span      7682 days (21.03 yr)      first obs. used      1999-04-16      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46593      source      ORB      producer      Otto Matic      solution date      2020-May-21 22:24:01   Additional Information  Jupiter MOID = 1.88281 au   T_jup = 3.220  Orbit Covariance (6×6)   e q tp node peri i e 1.977625848853031E-15 -5.781971271394903E-15 1.447060002861021E-12 8.210532004515138E-15 2.558181262233307E-13 6.220627969120353E-16 q -5.781971271394903E-15 1.800661788136401E-14 -1.001756501106506E-11 -2.877508438299675E-14 -1.79690124473562E-12 1.412209210528268E-15 tp 1.447060002861021E-12 -1.001756501106506E-11 1.500245163827834E-7 6.190411321099665E-11 2.785598221472508E-8 -1.977834558506706E-11 node 8.210532004515138E-15 -2.877508438299675E-14 6.190411321099665E-11 4.51501510708357E-10 -4.304370689349114E-10 -1.580799646393307E-11 peri 2.558181262233307E-13 -1.79690124473562E-12 2.785598221472508E-8 -4.304370689349114E-10 5.616419334865135E-9 1.190566241183084E-11 i 6.220627969120353E-16 1.412209210528268E-15 -1.977834558506706E-11 -1.580799646393307E-11 1.190566241183084E-11 2.598288400438319E-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 15.9   n/a MPO471575   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 ] 2020-Sep-20 21:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin