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11282 Hanakusa (1989 UY2)
Classification: Main-belt Asteroid          SPK-ID: 2011282
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2135671521195941 1.159e-08  
a 2.416414931033477 7.7278e-09 au
q 1.900348075873392 2.7399e-08 au
i 3.568259912942513 7.8598e-07 deg
node 62.55242352961182 1.084e-05 deg
peri 281.1688591853289 1.1052e-05 deg
M 144.004162197541 3.9959e-06 deg
tp 2458651.682139044934
(2019-Jun-17.18213905)
1.4165e-05 TDB
period 1372.004995750029
3.76
6.5816e-06
1.802e-08
d
yr
n .2623897151359862 1.2587e-09 deg/d
Q 2.932481786193563 9.3782e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2198  
   data-arc span      12958 days (35.48 yr)  
   first obs. used      1985-09-12  
   last obs. used      2021-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 22:33:54  

Additional Information
 Earth MOID = .89489 au 
 Jupiter MOID = 2.48367 au 
 T_jup = 3.482 
[ 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 14.07   n/a E2021B10  

11282 Hanakusa           Discovered 1989 Oct. 30 by K. Endate and K. Watanabe at Kitami.
Kiyotaka Hanakusa (b. 1956), director of the Seiwa Kogen Observatory since 1995, is an astronomy scholar and popularizer of astronomy in Kumamoto Prefecture.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1989 UY2 = 1985 RT6 = 1999 FR26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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