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JPL Small-Body Database Browser
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6658 Akiraabe (1992 WT2)
Classification: Main-belt Asteroid          SPK-ID: 2006658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07540720310699854 3.5845e-08  
a 2.291138495482731 7.4537e-09 au
q 2.118370149607602 8.3904e-08 au
i 4.613855915223005 3.599e-06 deg
node 112.822058454936 4.7389e-05 deg
peri 217.099976285554 5.3624e-05 deg
M 309.0620689230348 2.4492e-05 deg
tp 2458779.731459405387
(2019-Oct-23.23145941)
8.6049e-05 TDB
period 1266.704870451988
3.47
6.1814e-06
1.692e-08
d
yr
n .2842019545338482 1.3869e-09 deg/d
Q 2.463906841357861 8.0157e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2204  
   data-arc span      15531 days (42.52 yr)  
   first obs. used      1977-05-23  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47353  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:15:39  

Additional Information
 Earth MOID = 1.10795 au 
 Jupiter MOID = 2.75235 au 
 T_jup = 3.590 
[ 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 13.4   n/a MPO395063  

6658 Akiraabe           Discovered 1992 Nov. 18 by K. Endate and K. Watanabe at Kitami.
Named in honor of Akira Abe (b. 1934), managing editor of Hoshino Techo ("Star Handbook"), a quarterly journal that existed from 1978 to 1993 and popularized astronomy with the help of high-quality articles by professional astronomers. He has played a pivotal role in introducing many amateurs and professionals to astronomy. Name proposed by the discoverers following a suggestion by A. Fujii and A. Tanno.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980411/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1992 WT2 = 1977 KO = 1980 DH5 = 1994 EO3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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