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16675 Torii (1994 CY1)
Classification: Main-belt Asteroid          SPK-ID: 2016675
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08683428310468569 1.7494e-08  
a 2.328070542924172 6.891e-09 au
q 2.125914206312215 3.9166e-08 au
i 7.970225781384833 7.9096e-07 deg
node 300.5331520791541 3.4322e-06 deg
peri 299.9574939567898 6.8798e-06 deg
M 115.8764106655004 6.2493e-06 deg
tp 2458782.876273844630
(2019-Oct-26.37627384)
2.1998e-05 TDB
period 1297.455975314351
3.55
5.7607e-06
1.577e-08
d
yr
n .2774660619315258 1.2319e-09 deg/d
Q 2.530226879536129 7.4894e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2409  
   data-arc span      24562 days (67.25 yr)  
   first obs. used      1953-11-13  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46469  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:38:29  

Additional Information
 Earth MOID = 1.12381 au 
 Jupiter MOID = 2.52506 au 
 T_jup = 3.555 
[ show covariance matrix ]

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 14.08   n/a E2021B10  
rotation period rot_per 20.4611 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

16675 Torii           Discovered 1994 Feb. 8 by K. Endate and K. Watanabe at Kitami.
From 1985 to 2014 Hidemitsu Torii (b. 1947) was the director general of Sanko Gakuen in Tokyo, which specializes in welfare, early childhood education and child psychology. He is well-known as an enthusiastic educator.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-04-22Last Updated: 2016-04-25

[ show close-approach data ]
Alternate Designations
 1994 CY1 = 1982 YP = 1988 PT3 = 1999 RJ110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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