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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07508869839328146 3.5871e-08  
a 2.290417540717032 7.3746e-09 au
q 2.11843306880745 8.3902e-08 au
i 4.614404076136831 3.595e-06 deg
node 112.8214955782569 4.7356e-05 deg
peri 217.2644796698132 5.3626e-05 deg
M 62.62776044064254 2.4465e-05 deg
tp 2458780.240423805272
(2019-Oct-23.74042381)
8.6203e-05 TDB
period 1266.107024619774
3.47
6.1148e-06
1.674e-08
d
yr
n .2843361524734546 1.3732e-09 deg/d
Q 2.462402012626615 7.9283e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2228  
   data-arc span      15570 days (42.63 yr)  
   first obs. used      1977-05-23  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47871  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:31:56  

Additional Information
 Earth MOID = 1.10894 au 
 Jupiter MOID = 2.75385 au 
 T_jup = 3.591 
[ 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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