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241442 Shandongkexie (2008 YN9)
Classification: Main-belt Asteroid          SPK-ID: 2241442
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .01792823712325333 1.5496e-07  
a 3.099771380314246 7.5495e-08 AU
q 3.044197943980098 5.0456e-07 AU
i 11.88193334126161 1.2147e-05 deg
node 109.8079551911207 5.3133e-05 deg
peri 161.565443492164 0.00037832 deg
M 245.6037010430845 0.00037445 deg
tp 2457633.935496009657
(2016-Sep-02.43549601)
0.0020769 JED
period 1993.392973747872
5.46
7.2824e-05
1.994e-07
d
yr
n .1805966032493568 6.5977e-09 deg/d
Q 3.155344816648395 7.6849e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      7599 days (20.80 yr)  
   first obs. used      1994-06-07  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61829  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-08 00:02:44  

Additional Information
 Earth MOID = 2.0306 AU 
 T_jup = 3.189 
[ 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 15.5 mag n/a MPO241526  

241442 Shandongkexie           Discovered 2008 Dec. 25 at Shandong University Observatory, Weihai.
`Shandongkexie' is the Chinese phonetic alphabet representation of the Shandong Association for Science and Technology. It is an important non-governmental organization in China, devoted to developing exchanges between scientists and promoting public scientific education.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110615/MPCPages.arcLast Updated: 2013-03-28

[ show close-approach data ]
Alternate Designations
 2008 YN9 = 2005 MX13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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