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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2002360272044237 6.4315e-08  
a 2.852222308205412 2.1137e-08 au
q 2.281104644506529 1.8751e-07 au
i 16.08134376698609 6.9548e-06 deg
node 136.5139231970493 1.8507e-05 deg
peri 19.36607129439254 2.2651e-05 deg
M 245.9271414777029 1.3889e-05 deg
tp 2458158.010831154434
(2018-Feb-08.51083115)
7.0337e-05 JED
period 1759.436046536571
4.82
1.9558e-05
5.355e-08
d
yr
n .2046110176659479 2.2744e-09 deg/d
Q 3.423339971904295 2.5369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      9802 days (26.84 yr)  
   first obs. used      1989-02-03  
   last obs. used      2015-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54475  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:09:12  

Additional Information
 Earth MOID = 1.29669 au 
 Jupiter MOID = 1.61215 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
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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