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85805 (1998 WS6)
Classification: Main-belt Asteroid          SPK-ID: 2085805
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .14378939216296 3.7928e-08  
a 2.387667683589065 6.8957e-09 au
q 2.044346398678651 9.1417e-08 au
i .4688183561574872 3.4636e-06 deg
node 158.4430264461677 0.00048594 deg
peri 230.6447748621366 0.00048606 deg
M 69.09974402308863 1.0834e-05 deg
tp 2459137.837669143639
(2020-Oct-15.33766914)
4.036e-05 TDB
period 1347.59455949903
3.69
5.8379e-06
1.598e-08
d
yr
n .2671426635425349 1.1573e-09 deg/d
Q 2.73098896849948 7.8872e-09 au
  Orbit Determination Parameters
   # obs. used (total)      906  
   data-arc span      9089 days (24.88 yr)  
   first obs. used      1996-03-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51687  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:15:04  

Additional Information
 Earth MOID = 1.04863 au 
 Jupiter MOID = 2.7047 au 
 T_jup = 3.520 
[ show covariance matrix ]

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 16.23   n/a E2021B10  
diameter diameter 3.922 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85805 (1998 WS6)          Discovered 1998-Nov-24 by Cooney Jr., W. R., Motl, P. M. at Baton Rouge
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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