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8306 Shoko (1995 DY1)
Classification: Main-belt Asteroid          SPK-ID: 2008306
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2203694938264476 4.4102e-08  
a 2.241438906650398 7.2644e-09 au
q 1.747494149348944 9.9953e-08 au
i 4.779963049563373 4.4365e-06 deg
node 208.6269153252805 4.2988e-05 deg
peri 143.3713468623619 4.3629e-05 deg
M 1.940917286475945 9.2739e-06 deg
tp 2458993.891645789850
(2020-May-24.39164579)
3.1554e-05 TDB
period 1225.712982325794
3.36
5.9587e-06
1.631e-08
d
yr
n .293706606025253 1.4278e-09 deg/d
Q 2.735383663951853 8.8652e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1388  
   data-arc span      12045 days (32.98 yr)  
   first obs. used      1986-08-26  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53018  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:51:13  

Additional Information
 Earth MOID = .745195 au 
 Jupiter MOID = 2.71603 au 
 T_jup = 3.597 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO435778  
rotation period rot_per 3.3503 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Kusnirak, P.; Hornoch, H.; Galad, A.; et al. (2013) IAUC 9268.]

8306 Shoko           Discovered 1995 Feb. 24 by A. Nakamura at Kuma Kogen.
Named in honor of Shoko Sawada (b. 1962), Japanese singer and songwriter. Since her debut in 1979, she has released 52 singles and 22 albums, ranging from touching ballads to rhythmical pop songs. Her recordings have fascinated many fans in Japan, including the discoverer of this minor planet.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980610/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1995 DY1 = 1986 QA6 
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