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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454818408358995 5.9169e-08  
a 2.392993808694863 1.3475e-08 AU
q 2.044856664297024 1.4219e-07 AU
i 1.26957088956057 5e-06 deg
node 274.8547406583432 0.00032284 deg
peri 210.1776510629741 0.00032386 deg
M 196.191140611241 2.2067e-05 deg
tp 2457615.741574453494
(2016-Aug-15.24157445)
8.3972e-05 JED
period 1352.106153658113
3.70
1.1421e-05
3.127e-08
d
yr
n .2662512843581273 2.2489e-09 deg/d
Q 2.741130953092702 1.5436e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      6012 days (16.46 yr)  
   first obs. used      1998-01-02  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54135  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 14:31:24  

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 (905)
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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