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66239 (1999 FK2)
Classification: Main-belt Asteroid          SPK-ID: 2066239
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05304324059016444 4.2735e-08  
a 2.945886552223763 2.2225e-08 au
q 2.789627183082827 1.2462e-07 au
i 11.59251072883634 7.1588e-06 deg
node 352.9250518204673 2.426e-05 deg
peri 58.48435557223851 7.3764e-05 deg
M 184.9298041772392 7.0555e-05 deg
tp 2459898.615456175763
(2022-Nov-15.11545618)
0.00036359 TDB
period 1846.811004601846
5.06
2.09e-05
5.722e-08
d
yr
n .1949306123382194 2.206e-09 deg/d
Q 3.102145921364698 2.3404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      8535 days (23.37 yr)  
   first obs. used      1996-09-11  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57443  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:53:20  

Additional Information
 Earth MOID = 1.81608 au 
 Jupiter MOID = 2.10326 au 
 T_jup = 3.238 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456702.5 (2014-Feb-14.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05396722287193461 4.2348e-08  
q 2.787189498009385 1.2359e-07 au
tp 2456213.600983352105
(2012-Oct-13.10098335)
0.00035398 TDB
node 352.9520924780564 2.4264e-05 deg
peri 60.18488837654685 7.28e-05 deg
i 11.59186029983842 7.1578e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      8535 days (23.37 yr)  
   first obs. used      1996-09-11  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57443  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:53:20  

Additional Information
 Jupiter MOID = 2.10326 au 
 T_jup = 3.238 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.793376083154289E-15 -5.157949931310476E-15 -2.685569156398811E-12 3.39646945823848E-15 -5.495094046216768E-13 -1.083680513399245E-15
q -5.157949931310476E-15 1.527553662875387E-14 8.127502977468261E-12 -1.001570484708681E-14 1.677496426444769E-12 4.848733496231485E-15
tp -2.685569156398811E-12 8.127502977468261E-12 1.253031694775812E-7 9.796732628473979E-12 2.431837746597246E-8 9.136942342051243E-12
node 3.39646945823848E-15 -1.001570484708681E-14 9.796732628473979E-12 5.887585518364363E-10 -5.741357642580459E-10 -4.805611761211462E-11
peri -5.495094046216768E-13 1.677496426444769E-12 2.431837746597246E-8 -5.741357642580459E-10 5.299796078377191E-9 4.896185833126842E-11
i -1.083680513399245E-15 4.848733496231485E-15 9.136942342051243E-12 -4.805611761211462E-11 4.896185833126842E-11 5.123437505112033E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO468587  
diameter diameter 6.156 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66239 (1999 FK2)          Discovered 1999-Mar-16 by Spacewatch at Kitt Peak
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 FK2 = 2001 QY54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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