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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763601404506648 8.1569e-08  
a 2.714360646503895 3.7966e-08 AU
q 2.23565562165271 2.1839e-07 AU
i 3.965660903068617 8.7297e-06 deg
node 322.3763948038161 0.00011759 deg
peri 48.5526900009513 0.00012083 deg
M 292.2084145710939 3.2762e-05 deg
tp 2457308.090587888576
(2015-Oct-12.59058789)
0.00015343 JED
period 1633.427083011858
4.47
3.427e-05
9.383e-08
d
yr
n .2203955130560221 4.624e-09 deg/d
Q 3.193065671355078 4.4662e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      6140 days (16.81 yr)  
   first obs. used      1997-09-08  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58834  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 15:23:17  

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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