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21513 Bethcochran (1998 KM46)
Classification: Main-belt Asteroid          SPK-ID: 2021513
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07561128730990455 3.2991e-08  
a 2.291749247895879 6.0056e-09 au
q 2.118467137070966 7.5351e-08 au
i 6.16851939225449 3.712e-06 deg
node 190.5599314562265 2.9641e-05 deg
peri 244.1918023724854 4.0415e-05 deg
M 354.623666972342 2.5106e-05 deg
tp 2459219.424862589845
(2021-Jan-04.92486259)
8.8352e-05 TDB
period 1267.211405486921
3.47
4.9811e-06
1.364e-08
d
yr
n .2840883521417418 1.1167e-09 deg/d
Q 2.465031358720792 6.4596e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2069  
   data-arc span      10335 days (28.30 yr)  
   first obs. used      1992-10-01  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46398  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:52:59  

Additional Information
 Earth MOID = 1.14065 au 
 Jupiter MOID = 2.70593 au 
 T_jup = 3.586 
[ 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 14.4   n/a MPO492976  

21513 Bethcochran           Discovered 1998 May 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Elizabeth Jean Cochran (b. 1989) was awarded first place in the 2005 Intel International Science and Engineering Fair for her microbiology team project. She attends the Cheyenne Central High School, Cheyenne, Wyoming, 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: 20050822/MPCPages.arcLast Updated: 2005-08-26

Alternate Designations
 1998 KM46 = 1992 TE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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