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(1998 KY26)
Classification: Apollo [NEO]          SPK-ID: 3012392
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018020338736322 2.246e-07  
a 1.23287837992582 9.7844e-09 au
q .9840810153379609 2.8185e-07 au
i 1.481075672949005 1.2829e-05 deg
node 84.3673771252092 9.6732e-05 deg
peri 209.3924456921084 0.00015262 deg
M 287.5427781757621 0.003567 deg
tp 2457501.137064296746
(2016-Apr-22.63706430)
0.0049532 JED
period 500.0101057519356
1.37
5.9523e-06
1.63e-08
d
yr
n .7199854480113302 8.571e-09 deg/d
Q 1.481675744513679 1.1759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   # delay obs. used      2  
   # Doppler obs. used      2  
   data-arc span      11 days  
   first obs. used      1998-05-28  
   last obs. used      1998-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   fit RMS      .4383  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 00:31:07  

Additional Information
 Earth MOID = .00278395 au 
 Jupiter MOID = 3.65902 au 
 T_jup = 5.174 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.5 mag n/a MPO38186  
diameter diameter 0.03 km n/a S.J. Ostro et al. (1999) Science v.285, pp.557-559 effective diameter bound: 20-40m
rotation period rot_per 0.1784 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Hicks, M.; Weissman, P.; Rabinowitz, D.L.; Chamberlin, A.B.; Buratti, B.J.; Lee, C.O. (1998) B.A.A.S. 30, 1029.]
[Pravec, P.; Sarounova, L. (1998) IAUC 6941. (1998 KY26)]
[Ostro, S.J.; Pravec, P.; Benner, L.A.M.; Hudson, R.S.; et al. (1999) Science 285, 557-559.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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