+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102041 (1999 RT112) Classification: Main-belt Asteroid          SPK-ID: 2102041 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1943918882568677 4.5388e-08   a 2.245405052369446 8.5617e-09 au q 1.808916524337838 1.0178e-07 au i 4.64034924111065 6.4522e-06 deg node 199.5384605865253 4.8699e-05 deg peri 122.1030561977087 5.0862e-05 deg M 121.7641739798279 1.5244e-05 deg tp 2458784.821563067383 (2019-Oct-28.32156307) 5.1178e-05 TDB period 1228.967703756056 3.36 7.029e-06 1.924e-08 d yr n .2929287717649072 1.6754e-09 deg/d Q 2.681893580401054 1.0226e-08 au   Orbit Determination Parameters    # obs. used (total)      603      data-arc span      7884 days (21.59 yr)      first obs. used      1999-07-13      last obs. used      2021-02-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .59594      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:40:04   Additional Information  Earth MOID = .79991 au   Jupiter MOID = 2.64808 au   T_jup = 3.602  [ hide covariance matrix ] Orbital Elements at Epoch 2456634.5 (2013-Dec-08.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1938382492932099 4.508e-08   q 1.810277002392135 1.0092e-07 au tp 2456326.244214557826 (2013-Feb-02.74421456) 4.8691e-05 TDB node 199.7026468722191 4.8735e-05 deg peri 121.7466113363411 5.0931e-05 deg i 4.637745353012702 6.4494e-06 deg   Orbit Determination Parameters    # obs. used (total)      603      data-arc span      7884 days (21.59 yr)      first obs. used      1999-07-13      last obs. used      2021-02-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .59594      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:40:04   Additional Information  Jupiter MOID = 2.64808 au   T_jup = 3.602  Orbit Covariance (6×6)   e q tp node peri i e 2.03218522328125E-15 -4.538530121161083E-15 1.088500597348188E-12 1.002804203303594E-14 3.070566082219503E-13 -1.718777209141927E-16 q -4.538530121161083E-15 1.018386888787034E-14 -2.412310019221336E-12 -2.228535859675524E-14 -6.792176157119996E-13 5.268704386723056E-16 tp 1.088500597348188E-12 -2.412310019221336E-12 2.370842350203098E-9 1.661823717306809E-12 7.287173976927629E-10 1.621145807424883E-12 node 1.002804203303594E-14 -2.228535859675524E-14 1.661823717306809E-12 2.375115483102774E-9 -2.366066468671751E-9 -4.145648794823302E-11 peri 3.070566082219503E-13 -6.792176157119996E-13 7.287173976927629E-10 -2.366066468671751E-9 2.593929539396616E-9 4.176858468062196E-11 i -1.718777209141927E-16 5.268704386723056E-16 1.621145807424883E-12 -4.145648794823302E-11 4.176858468062196E-11 4.159416395316897E-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 16.3   n/a MPO436477   102041 (1999 RT112)          Discovered 1999-Sep-09 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-21 23:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin