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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018329481800192 2.1995e-07  
a 1.232881561409545 1.9205e-08 au
q .9840454411134715 2.8234e-07 au
i 1.481063366794268 1.2829e-05 deg
node 84.36743666806872 9.6712e-05 deg
peri 209.3962951333181 0.00015152 deg
M 71.53728262227077 0.0035654 deg
tp 2457501.140270263025
(2016-Apr-22.64027026)
0.0049544 JED
period 500.0120411922834
1.37
1.1683e-05
3.199e-08
d
yr
n .7199826611006739 1.6823e-08 deg/d
Q 1.481717681705619 2.3081e-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 = .00254338 au 
 Jupiter MOID = 3.6602 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. 2016-February); 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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