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52057 Clarkhowell (2002 PS130)
Classification: Main-belt Asteroid          SPK-ID: 2052057
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1004986367457456 4.6981e-08  
a 2.623968743947362 1.0816e-08 au
q 2.360263462317206 1.2224e-07 au
i 9.409773228026912 5.2085e-06 deg
node 328.1766110121467 1.8878e-05 deg
peri 9.23767391999864 2.6446e-05 deg
M 104.7906373114348 1.6665e-05 deg
tp 2458748.585377388339
(2019-Sep-22.08537739)
7.2151e-05 TDB
period 1552.517174379711
4.25
9.5989e-06
2.628e-08
d
yr
n .2318814928046342 1.4337e-09 deg/d
Q 2.887674025577519 1.1903e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1173  
   data-arc span      9154 days (25.06 yr)  
   first obs. used      1996-02-16  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:42:46  

Additional Information
 Earth MOID = 1.34912 au 
 Jupiter MOID = 2.46084 au 
 T_jup = 3.377 
[ 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 14.83   n/a E2021B10  

52057 Clarkhowell           Discovered 2002 Aug. 15 by M. Schwartz and P. Holvorcem at the Tenagra Observatory, Cottage Grove.
Francis Clark Howell (1925-2007), generally known as "F. Clark Howell", was an American anthropologist. He altered his discipline by adding a broad spectrum of modern sciences to the traditional "stones and bones" approach of the past and is considered the father of modern paleo-anthropology.
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 2013-04-25Last Updated: 2013-04-29

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Alternate Designations
 2002 PS130 = 1998 RX54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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