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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07626108267831287 2.9885e-08  
a 2.234116081432393 6.4542e-09 au
q 2.063739970233328 6.7518e-08 au
i 6.567410544029587 3.7131e-06 deg
node 222.8351252840238 2.8776e-05 deg
peri 213.6800839968201 3.8152e-05 deg
M 36.04799928310639 2.5757e-05 deg
tp 2459078.366249448493
(2020-Aug-16.86624945)
8.7155e-05 TDB
period 1219.711248139862
3.34
5.2855e-06
1.447e-08
d
yr
n .2951518242936787 1.279e-09 deg/d
Q 2.404492192631456 6.9464e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1603  
   data-arc span      8752 days (23.96 yr)  
   first obs. used      1997-02-01  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48675  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:52:36  

Additional Information
 Earth MOID = 1.08118 au 
 Jupiter MOID = 2.77596 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 14.8   n/a MPO344471  

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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