+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100136 (1993 SM4) Classification: Main-belt Asteroid          SPK-ID: 2100136 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2356272050494869 3.7439e-08   a 2.662713967551526 8.5884e-09 au q 2.03530611753113 9.9705e-08 au i 5.215127549685903 4.3198e-06 deg node 357.8116022005667 3.6701e-05 deg peri 336.9250600918846 3.7467e-05 deg M 108.5324656691791 6.9889e-06 deg tp 2458722.043597743918 (2019-Aug-26.54359774) 3.0111e-05 TDB period 1587.030237912518 4.35 7.6783e-06 2.102e-08 d yr n .226838778115231 1.0975e-09 deg/d Q 3.290121817571923 1.0612e-08 au   Orbit Determination Parameters    # obs. used (total)      958      data-arc span      10042 days (27.49 yr)      first obs. used      1993-08-20      last obs. used      2021-02-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47355      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:30:46   Additional Information  Earth MOID = 1.02502 au   Jupiter MOID = 2.10004 au   T_jup = 3.339  [ hide covariance matrix ] Orbital Elements at Epoch 2457326.5 (2015-Oct-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2376388714937626 3.7433e-08   q 2.0284452238675 9.9844e-08 au tp 2457136.644247681075 (2015-Apr-24.14424768) 2.8678e-05 TDB node 357.9067391921384 3.662e-05 deg peri 336.9283396683827 3.737e-05 deg i 5.224409617791435 4.3255e-06 deg   Orbit Determination Parameters    # obs. used (total)      958      data-arc span      10042 days (27.49 yr)      first obs. used      1993-08-20      last obs. used      2021-02-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47355      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:30:46   Additional Information  Jupiter MOID = 2.10004 au   T_jup = 3.339  Orbit Covariance (6×6)   e q tp node peri i e 1.401247172862859E-15 -3.729475917823393E-15 1.650956732466285E-13 -3.745368308205052E-15 3.213242311242226E-14 -6.106258378418016E-16 q -3.729475917823393E-15 9.968913925302894E-15 -4.414047502889727E-13 9.002157467834425E-15 -8.498365373850891E-14 1.748686140754137E-15 tp 1.650956732466285E-13 -4.414047502889727E-13 8.224217353778921E-10 -5.517033468477417E-12 2.229319210632924E-10 -3.555178467602446E-13 node -3.745368308205052E-15 9.002157467834425E-15 -5.517033468477417E-12 1.341012548771145E-9 -1.336151879455619E-9 -7.077949377103962E-12 peri 3.213242311242226E-14 -8.498365373850891E-14 2.229319210632924E-10 -1.336151879455619E-9 1.396525886930771E-9 6.967785647013717E-12 i -6.106258378418016E-16 1.748686140754137E-15 -3.555178467602446E-13 -7.077949377103962E-12 6.967785647013717E-12 1.87097534342855E-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 15.5   n/a MPO417504   100136 (1993 SM4)          Discovered 1993-Sep-19 by Elst, E. W. at Caussols Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1993 SM4 = 2002 TZ188  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 08:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin