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31451 Joenickell (1999 CE10)
Classification: Main-belt Asteroid          SPK-ID: 2031451
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391181812647073 5.4669e-08  
a 2.279143692562547 1.0386e-08 au
q 1.962073367212317 1.2358e-07 au
i 5.200477614381287 5.2218e-06 deg
node 102.183894184209 5.8749e-05 deg
peri 164.9974264928257 6.1727e-05 deg
M 211.5504937322317 1.7599e-05 deg
tp 2458118.741567124337
(2017-Dec-31.24156712)
6.1401e-05 JED
period 1256.770526593991
3.44
8.5908e-06
2.352e-08
d
yr
n .2864484743890724 1.9581e-09 deg/d
Q 2.596214017912778 1.1831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      8410 days (23.03 yr)  
   first obs. used      1993-03-19  
   last obs. used      2016-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56739  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:58:08  

Additional Information
 Earth MOID = .946394 au 
 Jupiter MOID = 2.47647 au 
 T_jup = 3.588 
[ 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 15.3 mag n/a MPO347754  

31451 Joenickell           Discovered 1999 Feb. 9 by J. McGaha at Grasslands Observatory.
Named in honor of Joe Nickell (b. 1944), the Senior Research Fellow of the Committee for Skeptical Inquiry. A noted author, investigator, and skeptic, Nickell has written more than 30 books on mysteries, frauds, forgeries and hoaxes. He promotes scientific inquiry and reasoned investigation of extraordinary claims.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111012/MPCPages.arcLast Updated: 2011-10-13

[ show close-approach data ]
Alternate Designations
 1999 CE10 = 2000 GP134 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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