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21434 Stanchiang (1998 FG116)
Classification: Main-belt Asteroid          SPK-ID: 2021434
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07631706440317589 2.7098e-08  
a 2.233983100976934 6.0027e-09 au
q 2.063492068784071 6.0423e-08 au
i 6.567648021036033 3.3124e-06 deg
node 222.8278143417583 2.8676e-05 deg
peri 213.6198773819509 3.7247e-05 deg
M 93.95840528568209 2.3965e-05 deg
tp 2459078.189189423607
(2020-Aug-16.68918942)
8.1047e-05 TDB
period 1219.602349136121
3.34
4.9156e-06
1.346e-08
d
yr
n .2951781785718913 1.1897e-09 deg/d
Q 2.404474133169797 6.4608e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1792  
   data-arc span      8891 days (24.34 yr)  
   first obs. used      1997-02-01  
   last obs. used      2021-06-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47331  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:33:06  

Additional Information
 Earth MOID = 1.08121 au 
 Jupiter MOID = 2.77593 au 
 T_jup = 3.627 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.87   n/a MPCxxxxx  

21434 Stanchiang           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Stanley Shang Chiang (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his materials science project. He attends the John L. Miller-Great Neck North High School, Great Neck, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050224/MPCPages.arcLast Updated: 2005-02-28

Alternate Designations
 1998 FG116 = 1999 RM117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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