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9324 (1989 CH4)
Classification: Main-belt Asteroid          SPK-ID: 2009324
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1560091160060725 5.3369e-08  
a 2.414619545939467 1.5357e-08 AU
q 2.037916885086467 1.2741e-07 AU
i 2.045431663007313 4.8886e-06 deg
node 328.1550638834489 0.00015183 deg
peri 231.9863569013476 0.00015241 deg
M 271.9220138793449 1.6305e-05 deg
tp 2457335.802174506587
(2015-Nov-09.30217451)
6.3189e-05 JED
period 1370.476189782727
3.75
1.3075e-05
3.58e-08
d
yr
n .2626824184789914 2.506e-09 deg/d
Q 2.791322206792467 1.7753e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1322  
   data-arc span      9489 days (25.98 yr)  
   first obs. used      1989-02-04  
   last obs. used      2015-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50586  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:17:53  

Additional Information
 Earth MOID = 1.03753 AU 
 T_jup = 3.500 
[ 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 13.9 mag n/a MPO266008  

9324 (1989 CH4)          Discovered 1989-Feb-07 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 CH4 = 1993 EV 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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