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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01989964765182739 6.4915e-08  
a 3.005142995385244 3.0029e-08 AU
q 2.945341708633721 1.9855e-07 AU
i 9.642976878886808 7.8871e-06 deg
node 307.6660733842073 4.1872e-05 deg
peri 127.8783247272408 0.00024646 deg
M 26.22863799140617 0.00023865 deg
tp 2456861.866119972406
(2014-Jul-23.36611997)
0.0012619 JED
period 1902.813132206345
5.21
2.8521e-05
7.809e-08
d
yr
n .1891935649942533 2.8358e-09 deg/d
Q 3.064944282136768 3.0627e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1056  
   data-arc span      11758 days (32.19 yr)  
   first obs. used      1982-10-21  
   last obs. used      2014-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49629  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:11:55  

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 12.2 mag n/a MPO267729  

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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