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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1300078354400883 5.4412e-08  
a 2.484871188170584 2.1815e-08 au
q 2.161818463649086 1.3312e-07 au
i 9.671931327405554 5.4184e-06 deg
node 110.1005064290089 7.4867e-05 deg
peri 4.686616791612369 9.2789e-05 deg
M 191.7188729377917 5.8607e-05 deg
tp 2458269.285977918439
(2018-May-30.78597792)
0.00023689 JED
period 1430.718680423596
3.92
1.8841e-05
5.158e-08
d
yr
n .2516217932468835 3.3135e-09 deg/d
Q 2.807923912692083 2.4651e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      5992 days (16.41 yr)  
   first obs. used      1999-01-11  
   last obs. used      2015-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61147  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 15:08:01  

Additional Information
 Earth MOID = 1.17693 au 
 Jupiter MOID = 2.2967 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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