+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100426 (1996 HB7) Classification: Main-belt Asteroid          SPK-ID: 2100426 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2382184941565834 2.6866e-08   a 2.582432034024465 1.0339e-08 au q 1.967248963617435 6.701e-08 au i 4.732862823104106 5.877e-06 deg node 139.6797703748327 3.6812e-05 deg peri 259.5516908243785 3.9362e-05 deg M 79.8472777311907 1.3772e-05 deg tp 2458664.298698210443 (2019-Jun-29.79869821) 5.7076e-05 TDB period 1515.799562405892 4.15 9.1028e-06 2.492e-08 d yr n .2374984192689728 1.4262e-09 deg/d Q 3.197615104431496 1.2802e-08 au   Orbit Determination Parameters    # obs. used (total)      716      data-arc span      10709 days (29.32 yr)      first obs. used      1991-01-15      last obs. used      2020-05-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55161      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:06:14   Additional Information  Earth MOID = .981558 au   Jupiter MOID = 2.24085 au   T_jup = 3.379  [ hide covariance matrix ] Orbital Elements at Epoch 2456827.5 (2014-Jun-19.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2361753184098639 2.6681e-08   q 1.97361544496436 6.643e-08 au tp 2457144.363613643545 (2015-May-01.86361364) 5.4873e-05 TDB node 139.8349191806105 3.6689e-05 deg peri 258.8288950148154 3.9352e-05 deg i 4.736370145486354 5.885e-06 deg   Orbit Determination Parameters    # obs. used (total)      716      data-arc span      10709 days (29.32 yr)      first obs. used      1991-01-15      last obs. used      2020-05-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55161      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:06:14   Additional Information  Jupiter MOID = 2.24085 au   T_jup = 3.379  Orbit Covariance (6×6)   e q tp node peri i e 7.118568353444829E-16 -1.761026722395297E-15 1.331868951044659E-14 1.367162749197507E-15 -1.596878733020079E-14 -6.461740390504194E-16 q -1.761026722395297E-15 4.412944110457269E-15 1.119508274855952E-13 -4.0641603835717E-15 7.261894408395029E-14 1.42631967992681E-15 tp 1.331868951044659E-14 1.119508274855952E-13 3.011092337688026E-9 -1.627230545746359E-11 7.842321488311814E-10 -3.674728453333952E-13 node 1.367162749197507E-15 -4.0641603835717E-15 -1.627230545746359E-11 1.346087705642978E-9 -1.345331774100302E-9 -3.935898302682515E-11 peri -1.596878733020079E-14 7.261894408395029E-14 7.842321488311814E-10 -1.345331774100302E-9 1.548574742709273E-9 3.917464717563996E-11 i -6.461740390504194E-16 1.42631967992681E-15 -3.674728453333952E-13 -3.935898302682515E-11 3.917464717563996E-11 3.463276693010826E-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 15.96   n/a E2021B55   100426 (1996 HB7)          Discovered 1996-Apr-18 by Spacewatch at Kitt Peak 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-Feb-25 20:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin