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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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01792819210436956 1.8628e-07  
a 3.099771336806294 1.2143e-07 AU
q 3.044198040800412 5.5335e-07 AU
i 11.88193608456567 1.6619e-05 deg
node 109.8079423592974 5.7447e-05 deg
peri 161.5654607899282 0.00038262 deg
M 245.6037036513972 0.00038063 deg
tp 2457633.935468230684
(2016-Sep-02.43546823)
0.0021162 JED
period 1993.3929317794
5.46
0.00011714
3.207e-07
d
yr
n .1805966070515994 1.0612e-08 deg/d
Q 3.155344632812175 1.2361e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      7156 days (19.59 yr)  
   first obs. used      1994-06-07  
   last obs. used      2014-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .65209  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-12 03:08:10  

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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