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9844 Otani (1989 WF1)
Classification: Main-belt Asteroid          SPK-ID: 2009844
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2188285717759192 8.8617e-08  
a 2.699433548268984 2.2589e-08 AU
q 2.10872036029728 2.4074e-07 AU
i 12.93165103384679 1.0003e-05 deg
node 60.75642056897217 3.386e-05 deg
peri 353.0206264998395 3.7733e-05 deg
M 240.6434555081192 1.8588e-05 deg
tp 2457537.595018692616
(2016-May-29.09501869)
8.7121e-05 JED
period 1619.971552900433
4.44
2.0334e-05
5.567e-08
d
yr
n .2222261244991914 2.7894e-09 deg/d
Q 3.290146736240688 2.7532e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      23600 days (64.61 yr)  
   first obs. used      1949-11-19  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53682  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:22:41  

Additional Information
 Earth MOID = 1.1206 AU 
 T_jup = 3.298 
[ 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 13.9 mag n/a MPO299034  

9844 Otani           Discovered 1989 Nov. 23 by Y. Kushida and O. Muramatsu at the Yatsugatake South Base Observatory.
Named in honor of Toyokazu Otani (b. 1928), first lecturer at the Gotoh Planetarium and Astronomical Museum in Tokyo, where he worked for 32 years until 1988. His deep knowledge of acoustics and classical music was instrumental in establishing the well-known BMG sound system, appreciated by planetarium audiences. Otani is also known as an eminent observer of the planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1989 WF1 = 1980 VF1 = 1996 HA26 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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