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441652 (2008 WB72)
Classification: Main-belt Asteroid          SPK-ID: 2441652
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .2214185417298022 1.2861e-07  
a 2.343458155896731 2.5256e-08 au
q 1.824573068413265 3.0172e-07 au
i 4.469252938230783 8.7073e-06 deg
node 12.18663567458644 7.7055e-05 deg
peri 351.3121257754655 8.1926e-05 deg
M 115.7093957487894 1.9771e-05 deg
tp 2458579.336858299803
(2019-Apr-05.83685830)
6.9458e-05 TDB
period 1310.340703370729
3.59
2.1183e-05
5.8e-08
d
yr
n .2747377068223048 4.4413e-09 deg/d
Q 2.862343243380197 3.0848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5085 days (13.92 yr)  
   first obs. used      2006-02-01  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 11:45:06  

Additional Information
 Earth MOID = .822544 au 
 Jupiter MOID = 2.5948 au 
 T_jup = 3.525 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457297.5 (2015-Oct-02.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2225229880395718 1.2981e-07  
q 1.821583539120058 3.0506e-07 au
tp 2457267.441877189539
(2015-Sep-01.94187719)
6.3829e-05 TDB
node 12.23489106530996 7.6898e-05 deg
peri 350.9200531739784 8.1648e-05 deg
i 4.476231696094681 8.7122e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5085 days (13.92 yr)  
   first obs. used      2006-02-01  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 11:45:06  

Additional Information
 Jupiter MOID = 2.5948 au 
 T_jup = 3.525 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.685177167330563E-14 -3.95197678703504E-14 -3.203250800488781E-12 -3.592739622317055E-14 -2.16680336778513E-12 -1.286275234788757E-14
q -3.95197678703504E-14 9.306203359700664E-14 7.566670183108658E-12 8.135849701424729E-14 5.100734267471421E-12 2.999763162414713E-14
tp -3.203250800488781E-12 7.566670183108658E-12 4.074193918383505E-9 8.17256497284804E-12 1.716017647394225E-9 -5.115984056958689E-12
node -3.592739622317055E-14 8.135849701424729E-14 8.17256497284804E-12 5.913357439002002E-9 -5.887332253043164E-9 1.343754151150332E-10
peri -2.16680336778513E-12 5.100734267471421E-12 1.716017647394225E-9 -5.887332253043164E-9 6.666430582322258E-9 -1.349159452784886E-10
i -1.286275234788757E-14 2.999763162414713E-14 -5.115984056958689E-12 1.343754151150332E-10 -1.349159452784886E-10 7.59031355940214E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.0   n/a MPO503571  

441652 (2008 WB72)          Discovered 2008-Sep-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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