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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1510548846082056 6.573e-08  
a 2.687450141646967 3.2163e-08 au
q 2.281497670610178 1.708e-07 au
i 12.02715413878884 9.2009e-06 deg
node 261.0594675567212 3.0426e-05 deg
peri 239.8219601765894 4.5272e-05 deg
M 56.68798615952633 3.2107e-05 deg
tp 2458747.105269732858
(2019-Sep-20.60526973)
0.00014161 TDB
period 1609.196393737855
4.41
2.8888e-05
7.909e-08
d
yr
n .2237141478820922 4.016e-09 deg/d
Q 3.093402612683755 3.7021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      5264 days (14.41 yr)  
   first obs. used      2005-11-25  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53124  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 04:48:47  

Additional Information
 Earth MOID = 1.32187 au 
 Jupiter MOID = 2.09844 au 
 T_jup = 3.326 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457687.5 (2016-Oct-26.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1519543793514986 6.5716e-08  
q 2.278823957615186 1.7087e-07 au
tp 2457137.897798317703
(2015-Apr-25.39779832)
0.00013149 TDB
node 261.0768244860951 3.0429e-05 deg
peri 239.8643826000457 4.5121e-05 deg
i 12.02775126740444 9.2013e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      5264 days (14.41 yr)  
   first obs. used      2005-11-25  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53124  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 04:48:47  

Additional Information
 Jupiter MOID = 2.09844 au 
 T_jup = 3.326 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.318589161216569E-15 -1.10971557234137E-14 -5.299079184836758E-13 -1.030148293393991E-14 6.917327553170649E-14 -3.260518424174542E-15
q -1.10971557234137E-14 2.919719287300629E-14 2.204846064781881E-12 2.895449996124627E-14 8.600955446233077E-14 9.420522486057667E-15
tp -5.299079184836758E-13 2.204846064781881E-12 1.728928284889932E-8 1.468285805900284E-11 4.381464394110675E-9 -7.689204946982876E-12
node -1.030148293393991E-14 2.895449996124627E-14 1.468285805900284E-11 9.259140320548615E-10 -9.011177672056408E-10 -9.836903938137884E-12
peri 6.917327553170649E-14 8.600955446233077E-14 4.381464394110675E-9 -9.011177672056408E-10 2.035861028707919E-9 7.731658586784423E-12
i -3.260518424174542E-15 9.420522486057667E-15 -7.689204946982876E-12 -9.836903938137884E-12 7.731658586784423E-12 8.46646999906534E-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 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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