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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454835708289862 5.9144e-08  
a 2.392959940988677 1.3446e-08 AU
q 2.044823583922924 1.4211e-07 AU
i 1.269705707153516 5.0002e-06 deg
node 274.8582353535118 0.00032279 deg
peri 210.139384680793 0.00032381 deg
M 142.9864804406195 2.1996e-05 deg
tp 2456263.475567255508
(2012-Dec-01.97556726)
8.1994e-05 JED
period 1352.077449506172
3.70
1.1396e-05
3.12e-08
d
yr
n .2662569367838249 2.2441e-09 deg/d
Q 2.741096298054429 1.5402e-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 = 1.06031 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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