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11873 Kokuseibi (1989 WS2)
Classification: Main-belt Asteroid          SPK-ID: 2011873
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1352783173636212 3.775e-08  
a 2.254716976851552 7.5086e-09 au
q 1.949702658091883 8.8119e-08 au
i 7.404171939606008 3.7361e-06 deg
node 107.0234135263781 2.9365e-05 deg
peri 318.8360684835412 3.2649e-05 deg
M 245.1460894860526 1.5189e-05 deg
tp 2458995.029756924654
(2020-May-25.52975692)
5.2924e-05 TDB
period 1236.620606623818
3.39
6.1772e-06
1.691e-08
d
yr
n .2911159640003578 1.4542e-09 deg/d
Q 2.559731295611221 8.5244e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1988  
   data-arc span      10955 days (29.99 yr)  
   first obs. used      1989-11-30  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50253  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:40:27  

Additional Information
 Earth MOID = .970394 au 
 Jupiter MOID = 2.70751 au 
 T_jup = 3.601 
[ 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 13.7   n/a MPO435812  
rotation period rot_per 4.7688 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]

11873 Kokuseibi           Discovered 1989 Nov. 30 by M. Matsuyama and K. Watanabe at Kushiro.
"Kokuseibi" is another name for The National Museum of Western Art. It opened in 1959 to introduce Western arts to the Japanese public. The core of the collection was the Matsukata Collection of Impressionist-school paintings and Rodin sculptures.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 1989 WS2 = 1994 EP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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