+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1415915070743188 4.4665e-08   a 3.126399049264104 2.088e-08 au q 2.683727496163082 1.3502e-07 au i 5.739661829497077 5.1784e-06 deg node 161.2211449261161 4.8516e-05 deg peri 153.186231225737 5.1945e-05 deg M 139.6236469456723 1.7977e-05 deg tp 2458217.392256124095 (2018-Apr-08.89225612) 0.00010026 TDB period 2019.133534773095 5.53 2.0227e-05 5.538e-08 d yr n .1782942999064477 1.7861e-09 deg/d Q 3.569070602365125 2.3836e-08 au   Orbit Determination Parameters    # obs. used (total)      954      data-arc span      15688 days (42.95 yr)      first obs. used      1977-02-12      last obs. used      2020-01-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57971      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 21:13:11   Additional Information  Earth MOID = 1.67166 au   Jupiter MOID = 1.74382 au   T_jup = 3.191  [ hide covariance matrix ] Orbital Elements at Epoch 2456825.5 (2014-Jun-17.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1453936704939661 4.585e-08   q 2.667957367768618 1.3951e-07 au tp 2456185.229089130790 (2012-Sep-14.72908913) 9.4433e-05 TDB node 161.3579238031696 4.8669e-05 deg peri 150.8619494255246 5.1692e-05 deg i 5.727788282049192 5.178e-06 deg   Orbit Determination Parameters    # obs. used (total)      954      data-arc span      15688 days (42.95 yr)      first obs. used      1977-02-12      last obs. used      2020-01-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57971      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 21:13:11   Additional Information  Jupiter MOID = 1.74382 au   T_jup = 3.191  Orbit Covariance (6×6)   e q tp node peri i e 2.102185658020591E-15 -6.351753883295238E-15 2.932213521308278E-14 1.26040291182444E-15 -6.641961417616174E-15 -6.139721958652524E-16 q -6.351753883295238E-15 1.946419171835839E-14 -2.324685331727774E-13 5.327457484774911E-16 6.51078877842281E-15 2.233629264344065E-15 tp 2.932213521308278E-14 -2.324685331727774E-13 8.917604523812864E-9 2.079108795302772E-11 1.666254279626983E-9 2.508416630458059E-12 node 1.26040291182444E-15 5.327457484774911E-16 2.079108795302772E-11 2.368719233465829E-9 -2.353671607532046E-9 7.933490512395698E-12 peri -6.641961417616174E-15 6.51078877842281E-15 1.666254279626983E-9 -2.353671607532046E-9 2.672108390192094E-9 -7.505816602256539E-12 i -6.139721958652524E-16 2.233629264344065E-15 2.508416630458059E-12 7.933490512395698E-12 -7.505816602256539E-12 2.681137634737476E-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 14.5   n/a MPO502285   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 ] 2020-Jul-15 06:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin