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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217327224238954 7.0099e-08  
a 3.029005687090837 2.6746e-08 au
q 2.660276578563808 2.2149e-07 au
i 13.26145252698643 7.3535e-06 deg
node 99.97937498706121 3.1319e-05 deg
peri 357.2278606745764 4.8991e-05 deg
M 49.92138202889137 3.3634e-05 deg
tp 2457133.486844551798
(2015-Apr-20.98684455)
0.00017997 JED
period 1925.522332409023
5.27
2.5504e-05
6.983e-08
d
yr
n .1869622563918039 2.4764e-09 deg/d
Q 3.397734795617867 3.0002e-08 au
  Orbit Determination Parameters
   # obs. used (total)      981  
   data-arc span      9844 days (26.95 yr)  
   first obs. used      1989-01-04  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46101  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:11:47  

Additional Information
 Earth MOID = 1.67688 au 
 Jupiter MOID = 1.7883 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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