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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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2001886985522768 6.6516e-08  
a 2.852011566436395 1.7212e-08 AU
q 2.281071082695453 1.9163e-07 AU
i 16.08228051050526 7.2715e-06 deg
node 136.5213383629539 2.1538e-05 deg
peri 19.21903688532922 2.6451e-05 deg
M 82.44303101337644 1.5387e-05 deg
tp 2456397.618987351418
(2013-Apr-15.11898735)
7.42e-05 JED
period 1759.241051314056
4.82
1.5925e-05
4.36e-08
d
yr
n .2046336968609844 1.8524e-09 deg/d
Q 3.422952050177336 2.0657e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      880  
   data-arc span      8893 days (24.35 yr)  
   first obs. used      1989-02-03  
   last obs. used      2013-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5981  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 22:24:23  

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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