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90805 (1994 WP8)
Classification: Main-belt Asteroid          SPK-ID: 2090805
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05516818656182142 7.3439e-08  
a 3.090438177097124 2.807e-08 au
q 2.919944307185255 2.349e-07 au
i 10.62770303486465 7.6455e-06 deg
node 200.981429803151 2.4564e-05 deg
peri 173.7638573956918 4.9692e-05 deg
M 296.3815996195009 4.4753e-05 deg
tp 2459351.178194053436
(2021-May-16.67819405)
0.00024844 TDB
period 1984.396795646792
5.43
2.7036e-05
7.402e-08
d
yr
n .1814153302352326 2.4717e-09 deg/d
Q 3.260932047008994 2.9619e-08 au
  Orbit Determination Parameters
   # obs. used (total)      450  
   data-arc span      12609 days (34.52 yr)  
   first obs. used      1985-01-18  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:18:16  

Additional Information
 Earth MOID = 1.92135 au 
 Jupiter MOID = 2.03755 au 
 T_jup = 3.196 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO436407  
diameter diameter 3.766 km 0.681 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.150   0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90805 (1994 WP8)          Discovered 1994-Nov-28 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1994 WP8 = 1985 BD1 = 1999 TV33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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