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29156 (1989 CH)
Classification: Main-belt Asteroid          SPK-ID: 2029156
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2000378689040271 6.6625e-08  
a 2.850997497392146 1.7509e-08 AU
q 2.280690033763106 1.9203e-07 AU
i 16.08242032278867 7.3025e-06 deg
node 136.5274574221582 2.1844e-05 deg
peri 19.1250447792368 2.681e-05 deg
M .6490865736528932 1.5652e-05 deg
tp 2456397.329747847598
(2013-Apr-14.82974785)		 7.6439e-05 JED
period 1758.302853873251
4.81		 1.6197e-05
4.434e-08		 d
yr
n .2047428855654641 1.8861e-09 deg/d
Q 3.421304961021185 2.1011e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      854  
   data-arc span      8831 days (24.18 yr)  
   first obs. used      1989-02-03  
   last obs. used      2013-04-09  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .60055  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 14:51:12  

Additional Information
 Earth MOID = 1.29706 AU 
 T_jup = 3.219 
[ 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 12.7 mag n/a PDS3 (MPO 16196)  

29156 (1989 CH)          Discovered 1989-Feb-03 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1989 CH = 1994 EX3 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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