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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1768609885798834 1.2888e-07  
a 2.712993450270675 5.2018e-08 AU
q 2.233170746645055 3.3294e-07 AU
i 3.966032239638247 1.1195e-05 deg
node 322.3928090879155 0.00012538 deg
peri 48.62808468860035 0.00012984 deg
M 159.8394494753495 3.3698e-05 deg
tp 2455675.808747544024
(2011-Apr-24.30874754)		 0.00014262 JED
period 1632.193127169059
4.47		 4.6942e-05
1.285e-07		 d
yr
n .2205621344726518 6.3434e-09 deg/d
Q 3.192816153896295 6.1218e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      5687 days (15.57 yr)  
   first obs. used      1997-09-08  
   last obs. used      2013-04-04  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .60113  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 19:19:46  

Additional Information
 Earth MOID = 1.23463 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 15.359 mag .45997 1 autocmod 2.5c

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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