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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1207413955122841 7.9959e-08  
a 3.026111376346154 3.8524e-08 AU
q 2.660734465790521 2.4757e-07 AU
i 13.2692096945705 8.7637e-06 deg
node 100.0032600655136 4.2017e-05 deg
peri 357.087918323541 6.0041e-05 deg
M 297.7535600653829 4.4137e-05 deg
tp 2457132.958779578007
(2015-Apr-20.45877958)
0.00023849 JED
period 1922.76314555175
5.26
3.6717e-05
1.005e-07
d
yr
n .1872305493439732 3.5753e-09 deg/d
Q 3.391488286901788 4.3175e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      9099 days (24.91 yr)  
   first obs. used      1989-01-04  
   last obs. used      2013-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .488  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:37:42  

Additional Information
 Earth MOID = 1.67715 AU 
 T_jup = 3.193 
[ 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 12.9 mag n/a MPO267746  

9747 (1989 AT)          Discovered 1989-Jan-04 by Ueda, S., Kaneda, H. at Kushiro (399)
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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