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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454913044964915 5.0497e-08  
a 2.392384011840378 1.2326e-08 au
q 2.044312941101171 1.2419e-07 au
i 1.269597011314552 4.2632e-06 deg
node 274.8337981723206 0.00028693 deg
peri 210.3321459178701 0.0002879 deg
M 355.8364515118792 2.151e-05 deg
tp 2457616.131688423288
(2016-Aug-15.63168842)
8.0777e-05 JED
period 1351.589359038188
3.70
1.0446e-05
2.86e-08
d
yr
n .2663530883789892 2.0585e-09 deg/d
Q 2.740455082579584 1.412e-08 au
  Orbit Determination Parameters
   # obs. used (total)      872  
   data-arc span      6659 days (18.23 yr)  
   first obs. used      1998-01-02  
   last obs. used      2016-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55419  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 15:38:11  

Additional Information
 Earth MOID = 1.05847 au 
 Jupiter MOID = 2.32515 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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