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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2002179291954244 6.563e-08  
a 2.852341844591329 2.2521e-08 AU
q 2.281251867109796 1.9222e-07 AU
i 16.0829432322927 7.0732e-06 deg
node 136.5193224309629 2.0189e-05 deg
peri 19.25822040087964 2.5255e-05 deg
M 123.3184381240151 1.4092e-05 deg
tp 2456397.765152143870
(2013-Apr-15.26515214)
6.824e-05 JED
period 1759.54665441024
4.82
2.0839e-05
5.705e-08
d
yr
n .2045981554951515 2.4232e-09 deg/d
Q 3.423431822072863 2.703e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      9300 days (25.46 yr)  
   first obs. used      1989-02-03  
   last obs. used      2014-07-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54917  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:25:14  

Additional Information
 Earth MOID = 1.29847 AU 
 T_jup = 3.218 
[ 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 13.1 mag n/a MPO263593  

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

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