+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1036321582625516 3.885e-08   a 2.758781992423944 1.4516e-08 au q 2.472883460373189 1.0921e-07 au i 3.446962148900522 4.3678e-06 deg node 84.12117400796673 7.6315e-05 deg peri 194.3923762032456 8.0412e-05 deg M 48.93005782234841 2.3269e-05 deg tp 2458973.017638054753 (2020-May-03.51763805) 0.00010878 TDB period 1673.687993536044 4.58 1.321e-05 3.617e-08 d yr n .2150938534484069 1.6977e-09 deg/d Q 3.0446805244747 1.6021e-08 au   Orbit Determination Parameters    # obs. used (total)      1087      data-arc span      8011 days (21.93 yr)      first obs. used      1998-11-11      last obs. used      2020-10-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57208      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 10:06:52   Additional Information  Earth MOID = 1.45475 au   Jupiter MOID = 2.05513 au   T_jup = 3.332  [ hide covariance matrix ] Orbital Elements at Epoch 2456909.5 (2014-Sep-09.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1020575893249609 3.8985e-08   q 2.476772504263723 1.0918e-07 au tp 2457302.152350784635 (2015-Oct-06.65235078) 0.00011578 TDB node 84.14685462524054 7.6242e-05 deg peri 195.0467427939064 8.0453e-05 deg i 3.44854906487136 4.3698e-06 deg   Orbit Determination Parameters    # obs. used (total)      1087      data-arc span      8011 days (21.93 yr)      first obs. used      1998-11-11      last obs. used      2020-10-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57208      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 10:06:52   Additional Information  Jupiter MOID = 2.05513 au   T_jup = 3.332  Orbit Covariance (6×6)   e q tp node peri i e 1.519827681962804E-15 -4.226884664905415E-15 3.469404545998118E-13 5.326919544397935E-15 8.482123191614584E-14 -4.935424158550555E-16 q -4.226884664905415E-15 1.192119313945418E-14 -1.634734077638464E-12 -1.868709543483061E-14 -3.89953304182327E-13 1.495013498334827E-15 tp 3.469404545998118E-13 -1.634734077638464E-12 1.340407077608354E-8 2.394624962504465E-11 2.998121639819431E-9 6.348946527177652E-13 node 5.326919544397935E-15 -1.868709543483061E-14 2.394624962504465E-11 5.812903721744933E-9 -5.79670294577113E-9 -1.096931392717102E-11 peri 8.482123191614584E-14 -3.89953304182327E-13 2.998121639819431E-9 -5.79670294577113E-9 6.472639239608851E-9 1.107732059595737E-11 i -4.935424158550555E-16 1.495013498334827E-15 6.348946527177652E-13 -1.096931392717102E-11 1.107732059595737E-11 1.909514327298692E-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 14.69   n/a E2021B10   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-Apr-19 01:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin