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9044 Kaoru (1991 KA)
Classification: Main-belt Asteroid          SPK-ID: 2009044
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1011388290532258 3.4217e-08  
a 2.23854646303346 7.3967e-09 au
q 2.012142494981016 7.5809e-08 au
i 4.661705636940715 3.8911e-06 deg
node 106.5471012240347 4.8252e-05 deg
peri 133.5382440522781 5.3062e-05 deg
M 240.5088588573834 2.4329e-05 deg
tp 2459406.551205564467
(2021-Jul-11.05120556)
8.3424e-05 TDB
period 1223.341183332907
3.35
6.0634e-06
1.66e-08
d
yr
n .2942760408173339 1.4585e-09 deg/d
Q 2.464950431085905 8.1448e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2003  
   data-arc span      13067 days (35.78 yr)  
   first obs. used      1984-02-27  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49758  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:48:28  

Additional Information
 Earth MOID = 1.00263 au 
 Jupiter MOID = 2.53828 au 
 T_jup = 3.625 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO347597  
diameter diameter 4.630 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.360   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9044 Kaoru           Discovered 1991 May 18 by S. Otomo and O. Muramatsu at Kiyosato.
Named in honor of Kaoru Kimura (b. 1964), lecturer and curator of the Gotoh Planetarium and Astronomical Museum in Tokyo, where she was in charge of an exhibition about the history of constellations. She traveled abroad several times to observe solar eclipses.
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

Alternate Designations
 1991 KA = 1984 DF3 = 1987 DG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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