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20631 Stefuller (1999 TW91)
Classification: Main-belt Asteroid          SPK-ID: 2020631
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134238544804025 5.7804e-08  
a 2.344459495458736 2.0032e-08 AU
q 2.029742664436377 1.3501e-07 AU
i 7.367561567991612 7.8237e-06 deg
node 65.60648516226273 4.8413e-05 deg
peri 259.8045248362967 5.734e-05 deg
M 115.3533157258267 3.1676e-05 deg
tp 2456580.363793793625
(2013-Oct-14.86379379)
0.00011388 JED
period 1311.180639087875
3.59
1.6805e-05
4.601e-08
d
yr
n .274561711230296 3.5189e-09 deg/d
Q 2.659176326481095 2.2721e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      992  
   data-arc span      23659 days (64.77 yr)  
   first obs. used      1949-11-19  
   last obs. used      2014-08-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5056  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:13:35  

Additional Information
 Earth MOID = 1.03411 AU 
 T_jup = 3.539 
[ 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 13.8 mag n/a MPO266064  

20631 Stefuller           Discovered 1999 Oct. 2 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Stephen Fuller (b. 1986) was awarded first place in the 2004 Intel International Science and Engineering Fair for his biochemistry team project. He attends the Hilton Head Preparatory School, Hilton Head Island, South Carolina, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041226/MPCPages.arcLast Updated: 2004-12-25

Alternate Designations
 1999 TW91 = 1949 WA1 = 2000 AK151 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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