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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01989964939678399 6.3226e-08  
a 3.005142994317847 2.8731e-08 AU
q 2.94534170234372 1.9141e-07 AU
i 9.642976860182618 7.7558e-06 deg
node 307.6660732224776 3.8787e-05 deg
peri 127.8783210950092 0.00024376 deg
M 26.22864220625997 0.00023583 deg
tp 2456861.866097768270
(2014-Jul-23.36609777)
0.0012471 JED
period 1902.813131192555
5.21
2.7288e-05
7.471e-08
d
yr
n .1891935650950529 2.7132e-09 deg/d
Q 3.064944286291974 2.9303e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1077  
   data-arc span      11779 days (32.25 yr)  
   first obs. used      1982-10-21  
   last obs. used      2015-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49276  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:13:10  

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 (399)
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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