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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2001886274188369 6.5954e-08  
a 2.852011586293516 2.2523e-08 AU
q 2.281071301450798 1.9318e-07 AU
i 16.08228560416117 7.0901e-06 deg
node 136.5213373960034 2.0224e-05 deg
peri 19.21905605248167 2.5299e-05 deg
M 82.44301157502177 1.4035e-05 deg
tp 2456397.619078134808
(2013-Apr-15.11907813)
6.8243e-05 JED
period 1759.241069687121
4.82
2.084e-05
5.706e-08
d
yr
n .2046336947238422 2.4241e-09 deg/d
Q 3.422951871136235 2.7032e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      9264 days (25.36 yr)  
   first obs. used      1989-02-03  
   last obs. used      2014-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55095  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:00:17  

Additional Information
 Earth MOID = 1.29792 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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