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90995 (1998 AK)
Classification: Main-belt Asteroid          SPK-ID: 2090995
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454818447689939 5.8776e-08  
a 2.392993809403662 1.3419e-08 AU
q 2.044856655490836 1.4137e-07 AU
i 1.269571091325856 4.9681e-06 deg
node 274.8547463706685 0.0003224 deg
peri 210.1776454349949 0.00032341 deg
M 196.1911400931057 2.2048e-05 deg
tp 2457615.741576672882
(2016-Aug-15.24157667)
8.3882e-05 JED
period 1352.106154258849
3.70
1.1373e-05
3.114e-08
d
yr
n .2662512842398327 2.2396e-09 deg/d
Q 2.741130963316489 1.5372e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      6445 days (17.65 yr)  
   first obs. used      1998-01-02  
   last obs. used      2015-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5364  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 16:59:10  

Additional Information
 Earth MOID = 1.06058 AU 
 T_jup = 3.516 
[ 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 15.2 mag n/a MPO263997  

90995 (1998 AK)          Discovered 1998-Jan-02 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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