+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102721 (1999 VZ98) Classification: Main-belt Asteroid          SPK-ID: 2102721 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1028063757862694 3.5835e-08   a 2.440625228977769 1.3291e-08 au q 2.189713394534031 9.2016e-08 au i 5.661402025774796 4.0522e-06 deg node 221.1257264327326 3.7984e-05 deg peri 52.53155135218601 4.3287e-05 deg M 313.8249743587036 2.2439e-05 deg tp 2459379.130130635663 (2021-Jun-13.63013064) 8.7447e-05 TDB period 1392.675935437406 3.81 1.1376e-05 3.115e-08 d yr n .2584951680714815 2.1115e-09 deg/d Q 2.691537063421508 1.4657e-08 au   Orbit Determination Parameters    # obs. used (total)      675      data-arc span      9486 days (25.97 yr)      first obs. used      1994-05-03      last obs. used      2020-04-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52612      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:53:02   Additional Information  Earth MOID = 1.17731 au   Jupiter MOID = 2.38549 au   T_jup = 3.488  [ hide covariance matrix ] Orbital Elements at Epoch 2457573.5 (2016-Jul-04.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1032867102135808 3.5843e-08   q 2.189445506128124 9.222e-08 au tp 2457983.993169579265 (2017-Aug-18.49316958) 8.2505e-05 TDB node 221.1627287990179 3.8014e-05 deg peri 52.01656558920781 4.3252e-05 deg i 5.658012339956739 4.0509e-06 deg   Orbit Determination Parameters    # obs. used (total)      675      data-arc span      9486 days (25.97 yr)      first obs. used      1994-05-03      last obs. used      2020-04-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52612      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:53:02   Additional Information  Jupiter MOID = 2.38549 au   T_jup = 3.488  Orbit Covariance (6×6)   e q tp node peri i e 1.284718950793569E-15 -3.280525411706728E-15 -6.047132150124348E-13 2.724556380043075E-15 -1.288034773673476E-13 1.311040436256255E-15 q -3.280525411706728E-15 8.504530184854104E-15 1.812934924565107E-12 -7.445729161590132E-15 3.85590129110884E-13 -3.186050394301284E-15 tp -6.047132150124348E-13 1.812934924565107E-12 6.80712403476281E-9 -1.816727693206029E-11 1.712488178446276E-9 2.541917095869767E-12 node 2.724556380043075E-15 -7.445729161590132E-15 -1.816727693206029E-11 1.445074677576446E-9 -1.442309446667509E-9 -7.589822581511141E-12 peri -1.288034773673476E-13 3.85590129110884E-13 1.712488178446276E-9 -1.442309446667509E-9 1.870728641117961E-9 8.219138620077301E-12 i 1.311040436256255E-15 -3.186050394301284E-15 2.541917095869767E-12 -7.589822581511141E-12 8.219138620077301E-12 1.64095067553713E-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 15.83   n/a E2021B55   102721 (1999 VZ98)          Discovered 1999-Nov-09 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 VZ98 = 2003 WB42  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 08:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin