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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01989966758796038 6.1491e-08  
a 3.005142985079057 2.7833e-08 AU
q 2.945341638621692 1.8446e-07 AU
i 9.642977403771958 7.7137e-06 deg
node 307.6660794357504 3.5841e-05 deg
peri 127.8782947506578 0.0002424 deg
M 26.22866633855263 0.00023485 deg
tp 2456861.865970854126
(2014-Jul-23.36597085)
0.0012419 JED
period 1902.813122417752
5.21
2.6435e-05
7.238e-08
d
yr
n .189193565967517 2.6284e-09 deg/d
Q 3.064944331536421 2.8387e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1288  
   data-arc span      11907 days (32.60 yr)  
   first obs. used      1982-10-21  
   last obs. used      2015-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46792  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:51:17  

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 12.4 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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