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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763601662823137 7.9394e-08  
a 2.714360686069381 2.4448e-08 AU
q 2.23565558412401 2.1672e-07 AU
i 3.96566016330644 8.5379e-06 deg
node 322.3764149035932 0.00010544 deg
peri 48.55269220219219 0.00010792 deg
M 292.208381395795 2.1843e-05 deg
tp 2457308.090745140103
(2015-Oct-12.59074514)
0.00010074 JED
period 1633.427118725979
4.47
2.2068e-05
6.042e-08
d
yr
n .2203955082371771 2.9776e-09 deg/d
Q 3.193065788014752 2.8759e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      6553 days (17.94 yr)  
   first obs. used      1997-09-08  
   last obs. used      2015-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5643  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 17:54:56  

Additional Information
 Earth MOID = 1.23767 AU 
 T_jup = 3.335 
[ 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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