+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   48181 (2001 HW32) Classification: Main-belt Asteroid          SPK-ID: 2048181 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1038412230808212 3.9337e-08   a 2.760181845269631 1.449e-08 au q 2.473561186531355 1.1038e-07 au i 3.447886661431741 4.4396e-06 deg node 84.1372782791689 7.6314e-05 deg peri 194.7218171014092 8.0435e-05 deg M 5.627834394902988 2.3397e-05 deg tp 2458974.315530587709 (2020-May-04.81553059) 0.00010893 TDB period 1674.962041697954 4.59 1.319e-05 3.611e-08 d yr n .2149302438132021 1.6925e-09 deg/d Q 3.046802504007908 1.5995e-08 au   Orbit Determination Parameters    # obs. used (total)      1080      data-arc span      8011 days (21.93 yr)      first obs. used      1998-11-11      last obs. used      2020-10-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57342      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 23:38:35   Additional Information  Earth MOID = 1.45731 au   Jupiter MOID = 2.05529 au   T_jup = 3.331  [ hide covariance matrix ] Orbital Elements at Epoch 2456870.5 (2014-Aug-01.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .102033307657562 3.9424e-08   q 2.476931316676328 1.1012e-07 au tp 2457302.088054470180 (2015-Oct-06.58805447) 0.00011643 TDB node 84.14795009608225 7.6303e-05 deg peri 195.0245385452078 8.0571e-05 deg i 3.4485437357729 4.4401e-06 deg   Orbit Determination Parameters    # obs. used (total)      1080      data-arc span      8011 days (21.93 yr)      first obs. used      1998-11-11      last obs. used      2020-10-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57342      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 23:38:35   Additional Information  Jupiter MOID = 2.05529 au   T_jup = 3.331  Orbit Covariance (6×6)   e q tp node peri i e 1.554271481643276E-15 -4.311066308349789E-15 2.761258317884907E-13 5.184273808071398E-15 6.643629223986457E-14 -5.150500548003069E-16 q -4.311066308349789E-15 1.212646757061155E-14 -1.460980485235303E-12 -1.835552398026093E-14 -3.448153995632042E-13 1.55803237585025E-15 tp 2.761258317884907E-13 -1.460980485235303E-12 1.355562555097706E-8 2.466958810172716E-11 3.036473865693145E-9 5.343052835817265E-13 node 5.184273808071398E-15 -1.835552398026093E-14 2.466958810172716E-11 5.82216718013498E-9 -5.805770687725574E-9 -1.215283611656791E-11 peri 6.643629223986457E-14 -3.448153995632042E-13 3.036473865693145E-9 -5.805770687725574E-9 6.491612364767417E-9 1.223506798377344E-11 i -5.150500548003069E-16 1.55803237585025E-15 5.343052835817265E-13 -1.215283611656791E-11 1.223506798377344E-11 1.971488472142717E-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 14.7   n/a MPO474359   48181 (2001 HW32)          Discovered 2001-Apr-24 by LINEAR at Socorro Reference: 20020921/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2001 HW32 = 2000 BW17  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 10:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin