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161715 Wenchuan (2006 MZ12)
Classification: Main-belt Asteroid          SPK-ID: 2161715
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 .1579625722840297 7.1204e-08  
a 2.553149206698682 2.8392e-08 au
q 2.149847190583628 1.7817e-07 au
i 3.565415290733527 7.5881e-06 deg
node 301.7038979455008 0.00013201 deg
peri 3.825818565326061 0.00013435 deg
M 102.7388630655488 2.8833e-05 deg
tp 2456975.249360637135
(2014-Nov-13.74936064)
0.00011806 JED
period 1490.090756337821
4.08
2.4856e-05
6.805e-08
d
yr
n .2415960225703082 4.03e-09 deg/d
Q 2.956451222813735 3.2877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      6353 days (17.39 yr)  
   first obs. used      1998-07-26  
   last obs. used      2015-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6422  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 18:16:54  

Additional Information
 Earth MOID = 1.1329 au 
 Jupiter MOID = 2.2678 au 
 T_jup = 3.419 
[ 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 16.2 mag n/a MPO359840  

161715 Wenchuan           Discovered 2006 June 23 by Q.-z. Ye and T.-C. Yang at Lulin.
This minor planet is named in memory of the 90~000 people killed in the great Wenchuan earthquake on 2008 May 12.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080618/MPCPages.arcLast Updated: 2008-06-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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