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JPL Small-Body Database Browser
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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1038412516334398 4.5851e-08  
a 2.760181846186283 1.8123e-08 au
q 2.473561108542401 1.3237e-07 au
i 3.447886551168441 5.2311e-06 deg
node 84.13731617057954 9.6751e-05 deg
peri 194.7217762157089 0.00010115 deg
M 5.627834349590358 3.0857e-05 deg
tp 2458974.315530785490
(2020-May-04.81553079)		 0.00014353 TDB
period 1674.962042532332
4.59		 1.6496e-05
4.516e-08		 d
yr
n .2149302437061352 2.1168e-09 deg/d
Q 3.046802583830165 2.0005e-08 au
   Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      7476 days (20.47 yr)  
   first obs. used      1998-11-11  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:45:25  

Additional Information
 Earth MOID = 1.45731 au 
 Jupiter MOID = 2.05529 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456091.5 (2012-Jun-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1005483630617232 4.5951e-08  
q 2.482688268006701 1.3151e-07 au
tp 2455617.675697718944
(2011-Feb-25.17569772)		 0.00014775 TDB
node 84.17754582197726 9.667e-05 deg
peri 193.1896837130626 0.00010142 deg
i 3.450041035200553 5.2408e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      7476 days (20.47 yr)  
   first obs. used      1998-11-11  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:45:25  

Additional Information
 Jupiter MOID = 2.05529 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.111460922999134E-15 -6.000951024410806E-15 -1.68343583202159E-12 -9.395259834959412E-15 -3.180938587474914E-13 -1.990180662793456E-16
q -6.000951024410806E-15 1.729542617233328E-14 4.520988668716475E-12 2.744646174536066E-14 8.622918475332006E-13 6.933178938514937E-16
tp -1.68343583202159E-12 4.520988668716475E-12 2.183045010177802E-8 6.436322524781296E-12 4.575617417100821E-9 3.05741675169067E-12
node -9.395259834959412E-15 2.744646174536066E-14 6.436322524781296E-12 9.345090045321655E-9 -9.326729330532938E-9 -1.506770263092101E-10
peri -3.180938587474914E-13 8.622918475332006E-13 4.575617417100821E-9 -9.326729330532938E-9 1.02854157787246E-8 1.510534527588228E-10
i -1.990180662793456E-16 6.933178938514937E-16 3.05741675169067E-12 -1.506770263092101E-10 1.510534527588228E-10 2.746548053308215E-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.arcLast 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 ]
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