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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01799337433760918 1.5486e-07  
a 3.096622552395441 7.1704e-08 au
q 3.040903863627907 5.0603e-07 au
i 11.88029147479988 1.1358e-05 deg
node 109.7846835865447 5.3056e-05 deg
peri 164.9160598013501 0.00037099 deg
M 314.5896654054783 0.00036828 deg
tp 2457651.563186492745
(2016-Sep-20.06318649)
0.0020376 JED
period 1990.35633505973
5.45
6.9131e-05
1.893e-07
d
yr
n .1808721351341324 6.2823e-09 deg/d
Q 3.152341241162975 7.2994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      7611 days (20.84 yr)  
   first obs. used      1994-06-07  
   last obs. used      2015-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63253  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 23:40:36  

Additional Information
 Earth MOID = 2.02381 au 
 Jupiter MOID = 1.9657 au 
 T_jup = 3.190 
[ 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 15.6 mag n/a MPO338716  

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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