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9747 (1989 AT)
Classification: Main-belt Asteroid          SPK-ID: 2009747
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1221511224152613 4.983e-08  
a 3.028240560359138 2.2176e-08 au
q 2.658337576967849 1.503e-07 au
i 13.25873622889713 5.299e-06 deg
node 99.91748562861727 2.8359e-05 deg
peri 357.0871934449735 4.6681e-05 deg
M 87.46549954889565 3.334e-05 deg
tp 2457132.852878832646
(2015-Apr-20.35287883)
0.00017861 JED
period 1924.792798172193
5.27
2.1143e-05
5.789e-08
d
yr
n .1870331187553593 2.0545e-09 deg/d
Q 3.398143543750427 2.4885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      9962 days (27.27 yr)  
   first obs. used      1989-01-04  
   last obs. used      2016-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46935  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:06:16  

Additional Information
 Earth MOID = 1.67365 au 
 Jupiter MOID = 1.78723 au 
 T_jup = 3.192 
[ 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 13.0 mag n/a MPO324399  

9747 (1989 AT)          Discovered 1989-Jan-04 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19981208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 AT = 1994 AA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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