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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1560091376278971 5.6435e-08  
a 2.414619551808335 1.6152e-08 AU
q 2.037916837831257 1.3356e-07 AU
i 2.04543159567503 4.9933e-06 deg
node 328.1550640310335 0.00015563 deg
peri 231.9863560493331 0.0001562 deg
M 271.9220117715837 1.6408e-05 deg
tp 2457335.802183753033
(2015-Nov-09.30218375)
6.3697e-05 JED
period 1370.476194779255
3.75
1.3751e-05
3.765e-08
d
yr
n .2626824175212951 2.6357e-09 deg/d
Q 2.791322265785412 1.8672e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1236  
   data-arc span      9462 days (25.91 yr)  
   first obs. used      1989-02-04  
   last obs. used      2015-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51895  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:29:30  

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 (399)
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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