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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304448533824333 7.2163e-08  
a 2.485372913355333 3.0061e-08 AU
q 2.161168808072025 1.9045e-07 AU
i 9.673729843672422 7.622e-06 deg
node 110.1061343793314 7.7625e-05 deg
peri 4.902130531332217 9.4625e-05 deg
M 350.2032023984765 5.7809e-05 deg
tp 2456839.446407465690
(2014-Jun-30.94640747)
0.00023004 JED
period 1431.152021091886
3.92
2.5965e-05
7.109e-08
d
yr
n .2515456043064809 4.5637e-09 deg/d
Q 2.80957701863864 3.3982e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      5475 days (14.99 yr)  
   first obs. used      1999-01-11  
   last obs. used      2014-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62633  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 08:02:16  

Additional Information
 Earth MOID = 1.17754 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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