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128925 Conwell (2004 TJ70)
Classification: Main-belt Asteroid          SPK-ID: 2128925
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2512989410506001 6.7843e-08  
a 3.074479244348389 6.241e-08 au
q 2.301865865961589 2.1749e-07 au
i 1.25179188943132 7.5385e-06 deg
node 255.8712738987667 0.00053082 deg
peri 2.413908652483926 0.00053183 deg
M 113.9822821622412 3.9135e-05 deg
tp 2456777.065800477759
(2014-Apr-29.56580048)
0.00020097 JED
period 1969.045605777101
5.39
5.9955e-05
1.641e-07
d
yr
n .1828296911680331 5.567e-09 deg/d
Q 3.847092622735188 7.8093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      13917 days (38.10 yr)  
   first obs. used      1977-10-12  
   last obs. used      2015-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61903  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 20:30:59  

Additional Information
 Earth MOID = 1.28547 au 
 Jupiter MOID = 1.22235 au 
 T_jup = 3.180 
[ 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 15.4 mag n/a MPO264193  

128925 Conwell           Discovered 2004 Oct. 6 by R. Holmes at the Astronomical Research Observatory, Charleston.
James Conwell (b. 1952) has been a professor at Eastern Illinois University since 1985, and the director of the Eastern Illinois University observatory since founding it in 2004.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 2004 TJ70 = 2002 CZ297 = 3368 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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