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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208011609357737 7.9921e-08  
a 3.026038729613648 3.8162e-08 AU
q 2.660489738039705 2.4756e-07 AU
i 13.26923610982901 8.7637e-06 deg
node 100.0029515325446 4.2018e-05 deg
peri 357.1333961520003 6.0041e-05 deg
M 335.1667297258099 4.4448e-05 deg
tp 2457133.129937378884
(2015-Apr-20.62993738)
0.00023848 JED
period 1922.693907375652
5.26
3.6371e-05
9.958e-08
d
yr
n .1872372917077455 3.5419e-09 deg/d
Q 3.39158772118759 4.2772e-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 = 1.67721 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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