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37786 Tokikonaruko (1997 SS17)
Classification: Main-belt Asteroid          SPK-ID: 2037786
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1399029860417697 4.2451e-08  
a 2.191591036928986 8.1557e-09 au
q 1.884980906680243 9.2342e-08 au
i 4.564141316263944 3.822e-06 deg
node 71.31847849955189 6.6224e-05 deg
peri 317.2485685392768 6.8191e-05 deg
M 48.22129678844983 1.7901e-05 deg
tp 2459041.764492455002
(2020-Jul-11.26449245)
5.8583e-05 TDB
period 1185.052798702145
3.24
6.615e-06
1.811e-08
d
yr
n .303783932997979 1.6957e-09 deg/d
Q 2.49820116717773 9.2967e-09 au
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      9007 days (24.66 yr)  
   first obs. used      1996-05-23  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:07:57  

Additional Information
 Earth MOID = .892008 au 
 Jupiter MOID = 2.93084 au 
 T_jup = 3.655 
[ 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 16.0   n/a MPO436032  
diameter diameter 1.390 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.399   0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37786 Tokikonaruko           Discovered 1997 Sept. 30 by Y. Ikari at Moriyama.
Tokiko Naruko (1923-1995), a selfless volunteer, devoted herself to the social welfare activities in the City of Otsu. She later served as president of the Otsu City Volunteer Association. She was the daughter of Issei Yamamoto, who founded the Oriental Astronomical Association.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

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