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8731 Tejima (1996 WY)
Classification: Main-belt Asteroid          SPK-ID: 2008731
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1223815481469767 3.4553e-08  
a 2.311345577564461 7.7657e-09 au
q 2.028479527479454 8.0921e-08 au
i 7.309152717775881 3.789e-06 deg
node 62.93055312233651 2.9173e-05 deg
peri 301.9019621154198 3.2825e-05 deg
M 307.9761429855378 1.5633e-05 deg
tp 2459185.979449544556
(2020-Dec-02.47944954)
5.5853e-05 TDB
period 1283.499641663975
3.51
6.4685e-06
1.771e-08
d
yr
n .2804831324559492 1.4136e-09 deg/d
Q 2.594211627649468 8.7161e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1544  
   data-arc span      10707 days (29.31 yr)  
   first obs. used      1991-04-08  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52811  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:01:34  

Additional Information
 Earth MOID = 1.03853 au 
 Jupiter MOID = 2.88286 au 
 T_jup = 3.563 
[ 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 14.9   n/a MPO473885  

8731 Tejima           Discovered 1996 Nov. 19 by T. Kobayashi at Oizumi.
During the 1870s Seiichi Tejima (1849-1918) contributed to the development of the Educational Museum (now the National Science Museum of Japan). He advocated the importance of technological education. He was also a founder of the Vocational School for Girls (now Kyoritsu Women's University).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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