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136824 Nonamikeiko (1997 RJ5)
Classification: Main-belt Asteroid          SPK-ID: 2136824
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 .1760804610834956 7.9046e-08  
a 2.713620525580508 1.8428e-08 au
q 2.235804972230654 2.1567e-07 au
i 3.965536154937381 7.0078e-06 deg
node 322.3707506563858 9.5706e-05 deg
peri 48.48516735320707 9.8069e-05 deg
M 64.5213219769504 1.6945e-05 deg
tp 2457307.867298573296
(2015-Oct-12.36729857)
7.6885e-05 JED
period 1632.759052135478
4.47
1.6632e-05
4.554e-08
d
yr
n .2204856861942719 2.246e-09 deg/d
Q 3.191436078930361 2.1673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      6702 days (18.35 yr)  
   first obs. used      1997-09-08  
   last obs. used      2016-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53081  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 07:14:22  

Additional Information
 Earth MOID = 1.23659 au 
 Jupiter MOID = 2.28319 au 
 T_jup = 3.336 
[ 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 15.5 mag n/a MPO299759  

136824 Nonamikeiko           Discovered 1997 Sept. 8 by H. Abe at Yatsuka.
Keiko Nonami (b.1960) is a member of Matsue Astronomy Club. She popularizes astronomy in Shimane prefecture and is an observing partner of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

Alternate Designations
 1997 RJ5 = 2002 XS41 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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