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JPL Small-Body Database Browser
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469900 (2005 WE79)
Classification: Main-belt Asteroid          SPK-ID: 2469900
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1513393940884506 9.6978e-08  
a 2.68821458162102 3.8875e-08 au
q 2.281381815658757 2.7087e-07 au
i 12.02730712837814 1.1735e-05 deg
node 261.0603785131865 3.1322e-05 deg
peri 239.8296259963816 4.8623e-05 deg
M 327.2075786918435 3.9409e-05 deg
tp 2458747.144341560437
(2019-Sep-20.64434156)
0.00017815 TDB
period 1609.883041744961
4.41
3.4922e-05
9.561e-08
d
yr
n .2236187292275555 4.8508e-09 deg/d
Q 3.095047347583283 4.4759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      4791 days (13.12 yr)  
   first obs. used      2005-11-25  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51837  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:58:23  

Additional Information
 Earth MOID = 1.32214 au 
 Jupiter MOID = 2.09836 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457463.5 (2016-Mar-16.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1520587426770855 9.6967e-08  
q 2.27858164711478 2.7094e-07 au
tp 2457137.995350165065
(2015-Apr-25.49535017)
0.00015848 TDB
node 261.0775041198649 3.1329e-05 deg
peri 239.8751594217899 4.8495e-05 deg
i 12.02778813465382 1.1735e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      4791 days (13.12 yr)  
   first obs. used      2005-11-25  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51837  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:58:23  

Additional Information
 Jupiter MOID = 2.09836 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.402505393301279E-15 -2.609075337357982E-14 -6.82686133292798E-12 -1.936042048337514E-14 -1.135097423656438E-12 -1.018662159408046E-14
q -2.609075337357982E-14 7.340852475055939E-14 2.076056368501057E-11 6.11344159846047E-14 3.627983462771892E-12 3.634635456802448E-14
tp -6.82686133292798E-12 2.076056368501057E-11 2.511705677643525E-8 7.405052754562212E-11 5.832541992263524E-9 4.912961242322097E-11
node -1.936042048337514E-14 6.11344159846047E-14 7.405052754562212E-11 9.814899339997082E-10 -9.410342901457832E-10 4.114605580047949E-11
peri -1.135097423656438E-12 3.627983462771892E-12 5.832541992263524E-9 -9.410342901457832E-10 2.351731432176153E-9 -2.816224234202727E-11
i -1.018662159408046E-14 3.634635456802448E-14 4.912961242322097E-11 4.114605580047949E-11 -2.816224234202727E-11 1.37718487154062E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO460742  

469900 (2005 WE79)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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