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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1118595524805496 7.39e-08  
a 3.053471601370241 4.3336e-08 AU
q 2.711911634528898 2.2791e-07 AU
i 12.39509622075994 8.4204e-06 deg
node 130.6708606863192 2.9386e-05 deg
peri 214.1658507548671 4.3835e-05 deg
M 326.1484536812621 3.614e-05 deg
tp 2457183.758980306355
(2015-Jun-10.25898031)
0.00019703 JED
period 1948.898649683535
5.34
4.149e-05
1.136e-07
d
yr
n .184719713392206 3.9325e-09 deg/d
Q 3.395031568211583 4.8184e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      7644 days (20.93 yr)  
   first obs. used      1993-07-20  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56915  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:45:05  

Additional Information
 Earth MOID = 1.71298 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 13.5 mag n/a MPO263531  

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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