+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102342 (1999 TO120) Classification: Main-belt Asteroid          SPK-ID: 2102342 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1275671023203942 5.0036e-08   a 2.344290487179947 1.0286e-08 au q 2.045236142733136 1.1607e-07 au i 7.089905081990656 5.4099e-06 deg node 355.1514218138773 3.4911e-05 deg peri 4.866096734691813 3.9028e-05 deg M 338.3895768649973 1.8486e-05 deg tp 2459279.200290327495 (2021-Mar-05.70029033) 6.7564e-05 TDB period 1311.038860317754 3.59 8.6286e-06 2.362e-08 d yr n .2745914029678322 1.8072e-09 deg/d Q 2.643344831626758 1.1598e-08 au   Orbit Determination Parameters    # obs. used (total)      570      data-arc span      9564 days (26.18 yr)      first obs. used      1994-03-14      last obs. used      2020-05-20      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56563      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:41:32   Additional Information  Earth MOID = 1.04011 au   Jupiter MOID = 2.79689 au   T_jup = 3.541  [ hide covariance matrix ] Orbital Elements at Epoch 2457005.5 (2014-Dec-14.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1269274021982372 4.9746e-08   q 2.047002457403939 1.1525e-07 au tp 2456657.544147798687 (2013-Dec-31.04414780) 6.2393e-05 TDB node 355.2290302351277 3.4954e-05 deg peri 4.932162475826777 3.9152e-05 deg i 7.086044421832476 5.4054e-06 deg   Orbit Determination Parameters    # obs. used (total)      570      data-arc span      9564 days (26.18 yr)      first obs. used      1994-03-14      last obs. used      2020-05-20      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56563      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:41:32   Additional Information  Jupiter MOID = 2.79689 au   T_jup = 3.541  Orbit Covariance (6×6)   e q tp node peri i e 2.474652436129238E-15 -5.716570659543501E-15 1.971933319774649E-13 1.599811949314853E-14 6.443041054039131E-15 -2.261781456072618E-15 q -5.716570659543501E-15 1.32815139815631E-14 -3.344173702412337E-13 -3.71543133399418E-14 2.218455811182761E-14 5.380203156993424E-15 tp 1.971933319774649E-13 -3.344173702412337E-13 3.892945094947843E-9 5.25823735735087E-12 1.112361519509078E-9 -5.922715905418564E-13 node 1.599811949314853E-14 -3.71543133399418E-14 5.25823735735087E-12 1.221754298371424E-9 -1.210685793256702E-9 1.496549987564359E-11 peri 6.443041054039131E-15 2.218455811182761E-14 1.112361519509078E-9 -1.210685793256702E-9 1.532852437578692E-9 -1.50433140127E-11 i -2.261781456072618E-15 5.380203156993424E-15 -5.922715905418564E-13 1.496549987564359E-11 -1.50433140127E-11 2.921821679743333E-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 16.11   n/a E2021B55   102342 (1999 TO120)          Discovered 1999-Oct-04 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 12:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin