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6237 Chikushi (1989 CV)
Classification: Outer Main-belt Asteroid          SPK-ID: 2006237
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .072455866517041 1.6046e-08  
a 3.934722541495951 3.0641e-08 au
q 3.649628810247728 6.8353e-08 au
i 5.360466706823064 3.5743e-07 deg
node 25.48682874012995 1.5507e-05 deg
peri 207.0849708106907 2.244e-05 deg
M 309.6328755059195 1.58e-05 deg
tp 2459795.354276945830
(2022-Aug-03.85427695)
0.0001276 TDB
period 2850.818686648953
7.81
3.3301e-05
9.117e-08
d
yr
n .1262795146131052 1.4751e-09 deg/d
Q 4.219816272744174 3.2861e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2669  
   data-arc span      23990 days (65.68 yr)  
   first obs. used      1955-10-25  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44713  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 00:27:25  

Additional Information
 Earth MOID = 2.64056 au 
 Jupiter MOID = .779082 au 
 T_jup = 3.049 
[ 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 11.56   n/a MPCxxxxx  
diameter diameter 37.4 km n/a DASTCOM value unverified
rotation period rot_per 7.787 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Warner, B.D.; Stephens, R.D. (2018) Minor Planet Bull. 45, 35-39.]
geometric albedo albedo 0.0348   0.008 EAR-A-5-DDR-ALBEDOS-V1.0:IMPS IMPS quality code 2: from the PDS IMPS singleton file

6237 Chikushi           Discovered 1989 Feb. 4 by T. Seki at Geisei.
This is the old name of the Fukuoka region in northern Kyushu. During 1944--1947 the Chikushi Astronomical Association was active. Several of its members, including Isao Ebihara, Takeo Mori, Mineo Nishiyama, Kiichiro Hurukawa and Ichiro Hasegawa, made their first studies of the orbits of comets and minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19961224/MPCPages.arcLast Updated: 2003-09-26

[ show close-approach data ]
Alternate Designations
 1989 CV = 1985 QZ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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