+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15210 (1979 MU2) Classification: Main-belt Asteroid          SPK-ID: 2015210 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1416121041851172 4.4253e-08   a 3.126526430580907 1.9574e-08 au q 2.683772443955961 1.3441e-07 au i 5.740274879623107 4.986e-06 deg node 161.2147135321554 4.4187e-05 deg peri 153.2552316979271 4.6931e-05 deg M 175.1991965074365 1.6644e-05 deg tp 2458217.799464285399 (2018-Apr-09.29946429) 9.0959e-05 TDB period 2019.256936730529 5.53 1.8963e-05 5.192e-08 d yr n .1782834038856355 1.6743e-09 deg/d Q 3.569280417205853 2.2346e-08 au   Orbit Determination Parameters    # obs. used (total)      1004      data-arc span      16046 days (43.93 yr)      first obs. used      1977-02-12      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57362      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:22:44   Additional Information  Earth MOID = 1.66973 au   Jupiter MOID = 1.74356 au   T_jup = 3.191  [ hide covariance matrix ] Orbital Elements at Epoch 2457221.5 (2015-Jul-18.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1433405601944144 4.4959e-08   q 2.680143614949177 1.3703e-07 au tp 2458207.163234687870 (2018-Mar-29.66323469) 8.9051e-05 TDB node 161.2791758701451 4.4182e-05 deg peri 151.4904108486757 4.676e-05 deg i 5.734937086056585 4.9935e-06 deg   Orbit Determination Parameters    # obs. used (total)      1004      data-arc span      16046 days (43.93 yr)      first obs. used      1977-02-12      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57362      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:22:44   Additional Information  Jupiter MOID = 1.74356 au   T_jup = 3.191  Orbit Covariance (6×6)   e q tp node peri i e 2.02127825764416E-15 -6.117877723063834E-15 5.665349232006586E-13 9.74699096030681E-15 5.060645033783157E-14 6.024810263693218E-17 q -6.117877723063834E-15 1.877820142621167E-14 -1.302124430587047E-12 -3.426090049621205E-14 -1.022633039840451E-13 -5.789226996775422E-16 tp 5.665349232006586E-13 -1.302124430587047E-12 7.930062709485155E-9 6.502366935934295E-12 1.376518569194564E-9 1.626962630122002E-12 node 9.74699096030681E-15 -3.426090049621205E-14 6.502366935934295E-12 1.952020077001609E-9 -1.941359468272565E-9 -1.878386588930672E-11 peri 5.060645033783157E-14 -1.022633039840451E-13 1.376518569194564E-9 -1.941359468272565E-9 2.186537441691432E-9 1.89803040450451E-11 i 6.024810263693218E-17 -5.789226996775422E-16 1.626962630122002E-12 -1.878386588930672E-11 1.89803040450451E-11 2.493477744065749E-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 14.46   n/a E2021B10   15210 (1979 MU2)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring Reference: 20000621/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1979 MU2 = 1996 TS6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-09 05:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin