+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101802 (1999 HV8) Classification: Main-belt Asteroid          SPK-ID: 2101802 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1266533297691791 4.4389e-08   a 2.576837465012701 1.075e-08 au q 2.250472419794872 1.1416e-07 au i 12.63825599857218 4.2662e-06 deg node 20.4651430367609 2.2137e-05 deg peri 94.11734162299416 2.8517e-05 deg M 111.6196633956005 1.7182e-05 deg tp 2458532.045760344909 (2019-Feb-17.54576034) 7.1536e-05 TDB period 1510.876499225136 4.14 9.455e-06 2.589e-08 d yr n .2382722877645054 1.4911e-09 deg/d Q 2.90320251023053 1.2112e-08 au   Orbit Determination Parameters    # obs. used (total)      778      data-arc span      7777 days (21.29 yr)      first obs. used      1999-03-13      last obs. used      2020-06-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61267      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:58:25   Additional Information  Earth MOID = 1.30808 au   Jupiter MOID = 2.25264 au   T_jup = 3.382  [ hide covariance matrix ] Orbital Elements at Epoch 2456892.5 (2014-Aug-23.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1272951338718399 4.4467e-08   q 2.248736311131759 1.1458e-07 au tp 2457023.036627489633 (2014-Dec-31.53662749) 6.9975e-05 TDB node 20.5102804340288 2.2149e-05 deg peri 94.55298081714231 2.8442e-05 deg i 12.63569956030784 4.265e-06 deg   Orbit Determination Parameters    # obs. used (total)      778      data-arc span      7777 days (21.29 yr)      first obs. used      1999-03-13      last obs. used      2020-06-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61267      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:58:25   Additional Information  Jupiter MOID = 2.25264 au   T_jup = 3.382  Orbit Covariance (6×6)   e q tp node peri i e 1.977297878678578E-15 -5.077550511500567E-15 3.769586484950462E-14 -5.268308935824517E-15 -7.363482885832879E-15 -1.108830062898881E-14 q -5.077550511500567E-15 1.312781935819039E-14 -8.514868570460051E-14 1.552278767151571E-14 1.621013627609844E-14 2.89545913771257E-14 tp 3.769586484950462E-14 -8.514868570460051E-14 4.896488340402941E-9 1.56573660128603E-11 1.274039026296072E-9 -3.199108419808073E-12 node -5.268308935824517E-15 1.552278767151571E-14 1.56573660128603E-11 4.905769933059606E-10 -4.743193521596998E-10 -8.747357557237071E-12 peri -7.363482885832879E-15 1.621013627609844E-14 1.274039026296072E-9 -4.743193521596998E-10 8.089715174038203E-10 7.802600539742954E-12 i -1.108830062898881E-14 2.89545913771257E-14 -3.199108419808073E-12 -8.747357557237071E-12 7.802600539742954E-12 1.818981779784658E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.2   n/a MPO160688   101802 (1999 HV8)          Discovered 1999-Apr-17 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1999 HV8 = 2001 SL155  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 21:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin