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9745 Shinkenwada (1988 VY)
Classification: Main-belt Asteroid          SPK-ID: 2009745
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091186840332135 3.837e-08  
a 2.921592883659375 1.2235e-08 au
q 2.602792512913663 1.1177e-07 au
i 1.757957539575149 4.0693e-06 deg
node 199.9573361585109 0.0001101 deg
peri 203.5944374854975 0.00011137 deg
M 150.2071774247356 1.6774e-05 deg
tp 2458439.444798732219
(2018-Nov-16.94479873)
8.3682e-05 TDB
period 1824.013187343757
4.99
1.1458e-05
3.137e-08
d
yr
n .1973669941083347 1.2398e-09 deg/d
Q 3.240393254405088 1.3571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1909  
   data-arc span      11830 days (32.39 yr)  
   first obs. used      1988-11-02  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5379  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:23:17  

Additional Information
 Earth MOID = 1.61072 au 
 Jupiter MOID = 2.12979 au 
 T_jup = 3.270 
[ 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 13.9   n/a MPO458924  
diameter diameter 5.317 km 0.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.104 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.227   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9745 Shinkenwada           Discovered 1988 Nov. 2 by T. Seki at Geisei.
Tokyo-born Shinken Wada (1912-1952) worked as a radio announcer for NHK from 1934 to 1945. He had a talent for newscasting and was also the compère for entertainment programs. He reported for the Helsinki Olympic Games in 1952 but died in Paris on the way home.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1988 VY = 1996 HA14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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