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24070 Toniwest (1999 TH173)
Classification: Main-belt Asteroid          SPK-ID: 2024070
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .100292691991942 6.99e-08  
a 2.341616603885138 1.8622e-08 AU
q 2.106769571068468 1.6333e-07 AU
i 3.586123190173982 5.276e-06 deg
node 114.7975434256957 0.00013454 deg
peri 43.14788147902379 0.00014011 deg
M 330.7685886023392 4.2563e-05 deg
tp 2457106.772132317238
(2015-Mar-25.27213232)
0.00015535 JED
period 1308.796455762897
3.58
1.5612e-05
4.274e-08
d
yr
n .275061869563328 3.2812e-09 deg/d
Q 2.576463636701808 2.0489e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      606  
   data-arc span      7984 days (21.86 yr)  
   first obs. used      1992-11-21  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55625  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:49:29  

Additional Information
 Earth MOID = 1.11851 AU 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2 mag n/a MPO270293  

24070 Toniwest           Discovered 1999 Oct. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Toni West mentored a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Meadow Park Middle School, Summa Academy, Beaverton, Oregon.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071026/MPCPages.arcLast Updated: 2007-10-28

[ show close-approach data ]
Alternate Designations
 1999 TH173 = 1997 AL23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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