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8575 Seishitakeuchi (1996 VL8)
Classification: Main-belt Asteroid          SPK-ID: 2008575
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172004984209037 4.9058e-08  
a 2.221076931955371 1.2828e-08 au
q 1.738657915303492 1.1022e-07 au
i 4.005236150239907 5.3581e-06 deg
node 295.5748245565613 7.6578e-05 deg
peri 37.35942799869667 7.7739e-05 deg
M 37.47691213432361 1.9285e-05 deg
tp 2457474.634956870176
6.4062e-05 JED
period 1209.048796878803
n .2977547315950779 2.5795e-09 deg/d
Q 2.703495948607249 1.5614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1087  
   data-arc span      12087 days (33.09 yr)  
   first obs. used      1982-07-09  
   last obs. used      2015-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52818  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:25:10  

Additional Information
 Earth MOID = .729502 au 
 Jupiter MOID = 2.65449 au 
 T_jup = 3.615 
[ 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 MPO290534  
rotation period rot_per 5.2571 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

8575 Seishitakeuchi           Discovered 1996 Nov. 7 by K. Endate and K. Watanabe at Kitami.
Seishi Takeuchi (b. 1961) is an amateur astronomer and a painter. He has served as a volunteer artist for the planetarium of Hiroshima Children's Museum for 20 years and has contributed to more than 70 planetarium shows.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1996 VL8 = 1989 NZ = 1991 AR2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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