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4212 Sansyu-Asuke (1987 SB2)
Classification: Main-belt Asteroid          SPK-ID: 2004212
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2492035372839035 7.2949e-08  
a 3.148588605847884 1.9076e-08 au
q 2.363949187818797 2.2927e-07 au
i 14.86993325526998 7.71e-06 deg
node 22.28043099078961 1.7673e-05 deg
peri 343.4074368548293 2.0618e-05 deg
M 67.40578289550903 9.843e-06 deg
tp 2457218.408864158491
(2015-Jul-14.90886416)
5.5687e-05 JED
period 2040.667773508015
5.59
1.8546e-05
5.078e-08
d
yr
n .1764128412637894 1.6032e-09 deg/d
Q 3.93322802387697 2.383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1382  
   data-arc span      24592 days (67.33 yr)  
   first obs. used      1948-11-26  
   last obs. used      2016-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53544  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:47:20  

Additional Information
 Earth MOID = 1.36609 au 
 Jupiter MOID = 1.53354 au 
 T_jup = 3.109 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.2 mag n/a MPO347556  
rotation period rot_per 15.94 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:
[Aznar, A.; Garceran, A.C.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 174-181.]

4212 Sansyu-Asuke           Discovered 1987 Sept. 28 by K. Suzuki and T. Urata at Toyota.
Sansyu-Asuke, in the middle of Aichi prefecture, has a national park where colors are beautiful in the autumn season.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041126/MPCPages.arcLast Updated: 2004-12-06

[ show close-approach data ]
Alternate Designations
 1987 SB2 = 1948 WJ = 1978 EB4 = 1982 YD1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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