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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2002449400189327 6.4324e-08  
a 2.852433632249958 2.1093e-08 au
q 2.281248230652079 1.8756e-07 au
i 16.08232241002213 6.9553e-06 deg
node 136.5182482517073 1.8504e-05 deg
peri 19.32546381877867 2.2646e-05 deg
M 205.057718292107 1.3728e-05 deg
tp 2458157.837036591595
(2018-Feb-08.33703659)
7.0322e-05 JED
period 1759.631587761016
4.82
1.9518e-05
5.344e-08
d
yr
n .204588280014949 2.2693e-09 deg/d
Q 3.423619033847837 2.5316e-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 = 1.29803 au 
 Jupiter MOID = 1.61246 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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