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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0198996607413259 6.2734e-08  
a 3.005142987775812 2.8359e-08 AU
q 2.945341661839899 1.8933e-07 AU
i 9.642977299790202 7.7185e-06 deg
node 307.6660808634859 3.7471e-05 deg
peri 127.8782883949023 0.00024294 deg
M 26.22867008383132 0.00023504 deg
tp 2456861.865950871500
(2014-Jul-23.36595087)
0.0012429 JED
period 1902.813124979072
5.21
2.6935e-05
7.374e-08
d
yr
n .1891935657128492 2.6781e-09 deg/d
Q 3.064944313711726 2.8924e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      11806 days (32.32 yr)  
   first obs. used      1982-10-21  
   last obs. used      2015-02-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4782  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:58:35  

Additional Information
 Earth MOID = 1.97117 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 12.3 mag n/a MPO324357  

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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