+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101031 (1998 QU76) Classification: Main-belt Asteroid          SPK-ID: 2101031 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1267150504135099 4.3392e-08   a 2.350475996836157 1.0646e-08 au q 2.052635312401318 1.0178e-07 au i 5.436599828370823 5.0282e-06 deg node 276.6405935888309 5.3845e-05 deg peri 99.08377375566168 5.8079e-05 deg M 351.6459196763385 2.1722e-05 deg tp 2459031.044168263255 (2020-Jun-30.54416826) 7.9476e-05 TDB period 1316.231128832661 3.60 8.9426e-06 2.448e-08 d yr n .2735081948101902 1.8582e-09 deg/d Q 2.648316681270995 1.1995e-08 au   Orbit Determination Parameters    # obs. used (total)      676      data-arc span      9628 days (26.36 yr)      first obs. used      1994-07-08      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60527      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:28:44   Additional Information  Earth MOID = 1.06236 au   Jupiter MOID = 2.83814 au   T_jup = 3.541  [ hide covariance matrix ] Orbital Elements at Epoch 2456876.5 (2014-Aug-07.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1278570014028551 4.3411e-08   q 2.050301246737666 1.0196e-07 au tp 2456398.586433769802 (2013-Apr-16.08643377) 7.5455e-05 TDB node 276.694952841046 5.3891e-05 deg peri 99.17130468552762 5.8014e-05 deg i 5.433964145112639 5.0256e-06 deg   Orbit Determination Parameters    # obs. used (total)      676      data-arc span      9628 days (26.36 yr)      first obs. used      1994-07-08      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60527      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:28:44   Additional Information  Jupiter MOID = 2.83814 au   T_jup = 3.541  Orbit Covariance (6×6)   e q tp node peri i e 1.884473824159214E-15 -4.40806383778948E-15 -8.989943398052907E-13 -1.731757607739378E-15 -2.517982575916726E-13 -2.07017747710382E-15 q -4.40806383778948E-15 1.039665211928831E-14 2.139543675361833E-12 3.850083338854216E-15 6.048646146429507E-13 4.879493216073985E-15 tp -8.989943398052907E-13 2.139543675361833E-12 5.693415578065835E-9 -8.293196749108E-12 1.645131444386407E-9 2.099904769864892E-12 node -1.731757607739378E-15 3.850083338854216E-15 -8.293196749108E-12 2.904189667078925E-9 -2.892984013100297E-9 7.27239659121353E-11 peri -2.517982575916726E-13 6.048646146429507E-13 1.645131444386407E-9 -2.892984013100297E-9 3.365578964805592E-9 -7.179695628097901E-11 i -2.07017747710382E-15 4.879493216073985E-15 2.099904769864892E-12 7.27239659121353E-11 -7.179695628097901E-11 2.525689989615391E-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 15.8   n/a MPO436471   101031 (1998 QU76)          Discovered 1998-Aug-24 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1998 QU76 = 1994 NP10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 18:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin