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236851 Chenchikwan (2007 RA139)
Classification: Main-belt Asteroid          SPK-ID: 2236851
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1716336605935588 1.2327e-07  
a 2.648527087565591 5.4916e-08 AU
q 2.193950688345512 3.3818e-07 AU
i 1.072915698484967 1.2523e-05 deg
node 290.3470230615611 0.00059306 deg
peri 346.0606668878981 0.00059507 deg
M 259.5187713091146 3.9594e-05 deg
tp 2457239.927762472978
(2015-Aug-05.42776247)
0.00017595 JED
period 1574.363655294572
4.31
4.8965e-05
1.341e-07
d
yr
n .2286638152432718 7.1118e-09 deg/d
Q 3.103103486785671 6.4341e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      13283 days (36.37 yr)  
   first obs. used      1977-10-11  
   last obs. used      2014-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55602  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 14:04:23  

Additional Information
 Earth MOID = 1.17711 AU 
 T_jup = 3.370 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3 mag n/a MPO248496  

236851 Chenchikwan           Discovered 2007 Sept. 15 by C.-S. Lin and Q.-z. Ye at Lulin.
Chen Chi-Kwan (1921-2007) was a renowned Taiwanese artist and architect whose designs on the campus of National Central University are some of his masterpieces.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 2007 RA139 = 2003 UC214 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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