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5398 (1989 AK1)
Classification: Main-belt Asteroid          SPK-ID: 2005398
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02194216572851746 5.4774e-08  
a 3.004628097766705 2.4945e-08 au
q 2.938700050092947 1.5765e-07 au
i 9.628221823616467 6.5173e-06 deg
node 307.596974965017 3.4488e-05 deg
peri 126.3369081169229 0.00016986 deg
M 141.1375518413055 0.00016446 deg
tp 2456854.696199064344
(2014-Jul-16.19619906)
0.0008694 JED
period 1902.324114554039
5.21
2.369e-05
6.486e-08
d
yr
n .1892421997102185 2.3567e-09 deg/d
Q 3.070556145440462 2.5492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1427  
   data-arc span      12231 days (33.49 yr)  
   first obs. used      1982-10-21  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .473  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:51:55  

Additional Information
 Earth MOID = 1.96382 au 
 Jupiter MOID = 2.02744 au 
 T_jup = 3.230 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO337298  

5398 (1989 AK1)          Discovered 1989-Jan-13 by Ueda and Kaneda at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 AK1 = 1971 QN1 = 1982 UD9 = 1982 VV9 = 1987 TC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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