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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389384263463957 5.605e-08  
a 2.27972302332917 1.2718e-08 AU
q 1.962981893962167 1.2811e-07 AU
i 5.200338048228883 5.6871e-06 deg
node 102.1896518377484 6.2754e-05 deg
peri 165.1121333321671 6.81e-05 deg
M 39.58524959602198 2.234e-05 deg
tp 2456862.254042233179
(2014-Jul-23.75404223)
7.8453e-05 JED
period 1257.249740849357
3.44
1.0521e-05
2.88e-08
d
yr
n .2863392914734632 2.3961e-09 deg/d
Q 2.596464152696172 1.4485e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      8184 days (22.41 yr)  
   first obs. used      1993-03-19  
   last obs. used      2015-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53503  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:19:38  

Additional Information
 Earth MOID = .948954 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 15.2 mag n/a PDS3 (MPO 18770)  

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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