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8452 Clay (1978 WB)
Classification: Main-belt Asteroid          SPK-ID: 2008452
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1684072267521532 6.3495e-08  
a 2.408028330907187 1.6449e-08 AU
q 2.002498957758491 1.5166e-07 AU
i 2.205829444624613 6.1714e-06 deg
node 56.15240160038703 0.00016323 deg
peri 345.5991865240167 0.00016431 deg
M 254.310048573765 2.5202e-05 deg
tp 2457401.202463686995
(2016-Jan-13.70246369)
9.8034e-05 JED
period 1364.868513805663
3.74
1.3985e-05
3.829e-08
d
yr
n .2637616710757082 2.7026e-09 deg/d
Q 2.813557704055883 1.9219e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      754  
   data-arc span      13024 days (35.66 yr)  
   first obs. used      1978-11-27  
   last obs. used      2014-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58263  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:12:41  

Additional Information
 Earth MOID = 1.01071 AU 
 T_jup = 3.501 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO302117  

8452 Clay           Discovered 1978 Nov. 27 at the Harvard College Observatory's Agassiz Station.
Named in honor of Landon and Livinia Clay, steadfast friends of science and the arts, Harvard University and the Smithsonian Institution. They are in particular enthusiastic and penetratingly knowledgeable supporters of astronomy, conservation biology and mathematics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980808/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1978 WB = 1989 VK6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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