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9289 Balau (1981 QR3)
Classification: Main-belt Asteroid          SPK-ID: 2009289
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569523330743441 8.857e-08  
a 2.598700310341243 2.3772e-08 AU
q 2.190828233672163 2.3513e-07 AU
i 13.49662196223451 1.0365e-05 deg
node 354.4474875332287 2.6529e-05 deg
peri 315.6494314690456 3.6104e-05 deg
M 2.57542882737042 2.929e-05 deg
tp 2456989.553386709839
(2014-Nov-28.05338671)
0.00012441 JED
period 1530.14548201723
4.19
2.0996e-05
5.748e-08
d
yr
n .2352717465305342 3.2283e-09 deg/d
Q 3.006572387010324 2.7503e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      954  
   data-arc span      18198 days (49.82 yr)  
   first obs. used      1964-08-08  
   last obs. used      2014-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50457  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:41:59  

Additional Information
 Earth MOID = 1.1995 AU 
 T_jup = 3.360 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a MPO263432  

9289 Balau           Discovered 1981 Aug. 26 by H. Debehogne at the European Southern Observatory.
The Balau area, near Costigliole d´Asti (Piedmont, Italy), is renowned for its natural beauty, its agricultural products and the wines (both red and white) produced there. Name suggested by M. Di Martino and A. Carbonere.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121228/MPCPages.arcLast Updated: 2013-01-02

[ show close-approach data ]
Alternate Designations
 1981 QR3 = 1988 FV1 = 1994 TO3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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