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469898 (2005 WB41)
Classification: Main-belt Asteroid          SPK-ID: 2469898
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2390315953964316 8.4661e-08  
a 2.400808682021031 1.4806e-08 au
q 1.82693955251594 2.0692e-07 au
i 21.19960419724819 9.3876e-06 deg
node 243.313470654657 1.3434e-05 deg
peri 126.1442683439531 2.2711e-05 deg
M 357.3398764650122 1.4817e-05 deg
tp 2459010.540008051361
(2020-Jun-10.04000805)
5.595e-05 TDB
period 1358.734980143144
3.72
1.2569e-05
3.441e-08
d
yr
n .2649523308526831 2.451e-09 deg/d
Q 2.974677811526123 1.8345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      7035 days (19.26 yr)  
   first obs. used      2001-08-11  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:34:58  

Additional Information
 Earth MOID = .897454 au 
 Jupiter MOID = 2.65423 au 
 T_jup = 3.397 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457810.5 (2017-Feb-26.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2406783460755246 8.5115e-08  
q 1.82260887191947 2.0837e-07 au
tp 2457651.942402031574
(2016-Sep-20.44240203)
5.2939e-05 TDB
node 243.3276128501388 1.3433e-05 deg
peri 126.1845797832873 2.2586e-05 deg
i 21.20627214307041 9.3924e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      7035 days (19.26 yr)  
   first obs. used      2001-08-11  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:34:58  

Additional Information
 Jupiter MOID = 2.65423 au 
 T_jup = 3.397 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.244513452005932E-15 -1.771198937507976E-14 2.828703544003634E-12 -5.008655106472147E-14 1.146390105712266E-12 -1.002460783353431E-13
q -1.771198937507976E-14 4.34178071617893E-14 -6.757347769458228E-12 1.195009991523429E-13 -2.758365630194282E-12 2.482721503365218E-13
tp 2.828703544003634E-12 -6.757347769458228E-12 2.802588863574901E-9 -3.212089241609881E-11 9.611220405151822E-10 -3.173174447772892E-11
node -5.008655106472147E-14 1.195009991523429E-13 -3.212089241609881E-11 1.804368550498872E-10 -1.790979626965238E-10 -3.230890377177903E-11
peri 1.146390105712266E-12 -2.758365630194282E-12 9.611220405151822E-10 -1.790979626965238E-10 5.10130721631129E-10 1.728979622994516E-11
i -1.002460783353431E-13 2.482721503365218E-13 -3.173174447772892E-11 -3.230890377177903E-11 1.728979622994516E-11 8.821633524245619E-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 16.8   n/a MPO477210  
diameter diameter 2.661 km 0.669 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.052   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

469898 (2005 WB41)          Discovered 2005-Nov-21 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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