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21441 Stevencondie (1998 FC144)
Classification: Main-belt Asteroid          SPK-ID: 2021441
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .149641008559865 6.0256e-08  
a 2.482303755822586 1.9032e-08 au
q 2.110849318249354 1.4962e-07 au
i 5.141269834576787 9.5833e-06 deg
node 238.4850078409473 4.9591e-05 deg
peri 52.34729377818986 6.0759e-05 deg
M 124.7297325303519 3.7151e-05 deg
tp 2456905.564843749903
(2014-Sep-05.06484375)
0.0001446 JED
period 1428.501870688108
3.91
1.6428e-05
4.498e-08
d
yr
n .2520122706080801 2.8983e-09 deg/d
Q 2.853758193395819 2.188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      994  
   data-arc span      8861 days (24.26 yr)  
   first obs. used      1991-09-15  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4852  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:47:49  

Additional Information
 Earth MOID = 1.09763 au 
 Jupiter MOID = 2.30464 au 
 T_jup = 3.457 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO347688  

21441 Stevencondie           Discovered 1998 Mar. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Steven Condie mentored a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Illinois Mathematics and Science Academy, Aurora, Illinois.
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 FC144 = 1991 RO21 = 1998 HO60 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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