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148081 Sunjiadong (1999 AW23)
Classification: Main-belt Asteroid          SPK-ID: 2148081
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .13038118162261 5.8628e-08  
a 2.48497102587502 2.3843e-08 AU
q 2.160977567223486 1.4706e-07 AU
i 9.672858079091601 6.4919e-06 deg
node 110.1034037695187 7.6919e-05 deg
peri 4.746958918117392 9.402e-05 deg
M 40.64311677668049 5.7675e-05 deg
tp 2456838.965636346481
(2014-Jun-30.46563635)
0.00022837 JED
period 1430.804906887272
3.92
2.0592e-05
5.638e-08
d
yr
n .2516066294343252 3.6212e-09 deg/d
Q 2.808964484526554 2.6951e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      5919 days (16.21 yr)  
   first obs. used      1999-01-11  
   last obs. used      2015-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59743  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 22:04:18  

Additional Information
 Earth MOID = 1.17759 AU 
 T_jup = 3.445 
[ 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 15.8 mag n/a MPO280770  

148081 Sunjiadong           Discovered 1999 Jan. 11 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Sun Jiadong (b. 1929), aerospace-technologist-academician of the Chinese Academy of Sciences, is a pioneer in artificial-satellite and deep-space-exploration technology in China. He was awarded the State Supreme Science and Technology Prize in 2009.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

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