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20613 Chibaken (1999 RE240)
Classification: Main-belt Asteroid          SPK-ID: 2020613
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116362752407824 7.2384e-08  
a 3.052279211327192 3.3622e-08 au
q 2.711534129179752 2.1815e-07 au
i 12.39490332836564 7.1125e-06 deg
node 130.6646264026525 2.8949e-05 deg
peri 213.9677116147982 4.0726e-05 deg
M 77.18742470202177 2.774e-05 deg
tp 2457182.882330451822
(2015-Jun-09.38233045)
0.00015046 JED
period 1947.757184771139
5.33
3.2183e-05
8.811e-08
d
yr
n .1848279666555562 3.0539e-09 deg/d
Q 3.393024293474633 3.7376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      823  
   data-arc span      8218 days (22.50 yr)  
   first obs. used      1993-07-20  
   last obs. used      2016-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55623  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:29:31  

Additional Information
 Earth MOID = 1.71116 au 
 Jupiter MOID = 1.98218 au 
 T_jup = 3.191 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO350965  

20613 Chibaken           Discovered 1999 Sept. 11 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Chiba prefecture is located east of Tokyo. In 2011, some areas were damaged during the Tohoku earthquake.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

Alternate Designations
 1999 RE240 = 1993 OF2 = 1996 AK9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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