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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036321600229028 3.9302e-08  
a 2.758781990239812 1.4625e-08 au
q 2.472883453558977 1.1021e-07 au
i 3.446961907017592 4.4381e-06 deg
node 84.12117537670906 7.6377e-05 deg
peri 194.3923750439365 8.0524e-05 deg
M 48.9300577276689 2.3359e-05 deg
tp 2458973.017638765078
(2020-May-03.51763877)
0.00010921 TDB
period 1673.687991548452
4.58
1.3309e-05
3.644e-08
d
yr
n .2150938537038421 1.7104e-09 deg/d
Q 3.044680526920647 1.614e-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 = 1.45475 au 
 Jupiter MOID = 2.05513 au 
 T_jup = 3.332 
[ 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 = 2.05513 au 
 T_jup = 3.332 
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 14.69   n/a E2021B10  

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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