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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 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.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1918-Jan-29 01:28 00:02 Europ 0.015772441034366 0.0157551740730305 0.0157897159722657 3.66803649492088 3.66803631120819 2421622.560870936 2.41558165583028 1026.77562241011 53.8677317490811 -33.1056205862568 23979.8441212322 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 23:38:38 2020-Nov-12 23:38

Alternate Designations
 2001 HW32 = 2000 BW17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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