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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1436550767769792 3.8776e-08  
a 2.387270347815022 9.9532e-09 au
q 2.044326842712249 9.4625e-08 au
i .4687916862995788 3.8621e-06 deg
node 158.4550164579603 0.00051871 deg
peri 230.5421775036344 0.00051894 deg
M 323.3714272986871 1.8568e-05 deg
tp 2459137.578179363042
(2020-Oct-15.07817936)
7.0043e-05 TDB
period 1347.258190295972
3.69
8.4256e-06
2.307e-08
d
yr
n .2672093609027632 1.6711e-09 deg/d
Q 2.730213852917795 1.1383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      8894 days (24.35 yr)  
   first obs. used      1996-03-26  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:57:17  

Additional Information
 Earth MOID = 1.04929 au 
 Jupiter MOID = 2.70364 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 16.1   n/a MPO436375  
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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