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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454824871351885 5.1444e-08  
a 2.392464553788162 1.2486e-08 au
q 2.044402860120281 1.2615e-07 au
i 1.269559923818997 4.3114e-06 deg
node 274.835564666646 0.00029651 deg
peri 210.2980926309143 0.00029746 deg
M 302.5923279780793 2.167e-05 deg
tp 2457616.043102668202
(2016-Aug-15.54310267)
8.1629e-05 JED
period 1351.657613479315
3.70
1.0581e-05
2.897e-08
d
yr
n .2663396383891334 2.085e-09 deg/d
Q 2.740526247456043 1.4302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      6552 days (17.94 yr)  
   first obs. used      1998-01-02  
   last obs. used      2015-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53889  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 16:26:27  

Additional Information
 Earth MOID = 1.05997 au 
 Jupiter MOID = 2.32592 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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