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129324 Johnweirich (2005 TH72)
Classification: Main-belt Asteroid          SPK-ID: 2129324
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028435431026662 4.0397e-08  
a 2.349577340127685 1.1067e-08 au
q 1.872980747662447 9.6462e-08 au
i 3.141776936860702 4.9058e-06 deg
node 56.64231079068134 8.565e-05 deg
peri 242.444513203445 8.6751e-05 deg
M 86.49209714549707 1.2086e-05 deg
tp 2458684.449143810092
(2019-Jul-19.94914381)
4.4473e-05 TDB
period 1315.476349671219
3.60
9.2943e-06
2.545e-08
d
yr
n .2736651252528985 1.9335e-09 deg/d
Q 2.826173932592923 1.3312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      8239 days (22.56 yr)  
   first obs. used      1997-04-12  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .632  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:51:03  

Additional Information
 Earth MOID = .859837 au 
 Jupiter MOID = 2.3955 au 
 T_jup = 3.529 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO432773  

129324 Johnweirich           Discovered 2005 Oct. 4 by Mt. Lemmon Survey at Mount Lemmon.
John R. Weirich (b. 1979) is a researcher at the Planetary Science Institute. Currently his research focus is testing and preparing code that will be used to build a shape model of asteroid Bennu for the OSIRIS-REx Asteroid Sample Return Mission. He also conducts age dating on impact-melted meteorites.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-11-14Last Updated: 2016-11-20

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Alternate Designations
 2005 TH72 = 2004 HQ14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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