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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2510990092022684 8.1625e-08  
a 3.075142452827448 7.5752e-08 AU
q 2.302977229766642 2.7716e-07 AU
i 1.251554664954204 8.0652e-06 deg
node 255.8972844147209 0.00057744 deg
peri 2.44473477772621 0.00057832 deg
M 40.82650604025821 3.9179e-05 deg
tp 2456777.124262884411
(2014-Apr-29.62426288)
0.00020868 JED
period 1969.68276644384
5.39
7.2781e-05
1.993e-07
d
yr
n .182770548706156 6.7535e-09 deg/d
Q 3.847307675888254 9.4773e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      13015 days (35.63 yr)  
   first obs. used      1977-10-12  
   last obs. used      2013-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63992  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 03:55:45  

Additional Information
 Earth MOID = 1.28939 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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