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JPL Small-Body Database Browser
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39221 (2000 YK8)
Classification: Main-belt Asteroid          SPK-ID: 2039221
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091530448591269 5.1975e-08  
a 2.78156346792844 1.4779e-08 au
q 2.477947345935138 1.4379e-07 au
i 2.71202606847116 4.8433e-06 deg
node 311.6678435443675 8.9344e-05 deg
peri 53.29734385146948 9.1604e-05 deg
M 135.1711951449932 1.8818e-05 deg
tp 2458364.270883163200
(2018-Sep-02.77088316)
8.8485e-05 TDB
period 1694.462210055646
4.64
1.3505e-05
3.697e-08
d
yr
n .2124567888641067 1.6933e-09 deg/d
Q 3.085179589921741 1.6392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      9814 days (26.87 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52274  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:08:15  

Additional Information
 Earth MOID = 1.47698 au 
 Jupiter MOID = 2.3718 au 
 T_jup = 3.323 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456841.5 (2014-Jul-03.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1072411469524956 5.2166e-08  
q 2.482802732673786 1.4406e-07 au
tp 2456661.244852237928
(2014-Jan-03.74485224)
9.1544e-05 TDB
node 311.868256766839 8.8906e-05 deg
peri 51.58099830824663 9.1284e-05 deg
i 2.720119070380782 4.8505e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      9814 days (26.87 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52274  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:08:15  

Additional Information
 Jupiter MOID = 2.3718 au 
 T_jup = 3.323 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.721261170874851E-15 -7.484588839431514E-15 -1.322075758969825E-12 1.562153712504285E-14 -3.998115988609449E-13 -9.556161947534447E-16
q -7.484588839431514E-15 2.075453846474009E-14 3.514992132149219E-12 -4.337930500533712E-14 1.077978375601956E-12 2.756111964817367E-15
tp -1.322075758969825E-12 3.514992132149219E-12 8.380226662933482E-9 -3.913491319903218E-11 1.905762879895065E-9 -5.472457367541825E-13
node 1.562153712504285E-14 -4.337930500533712E-14 -3.913491319903218E-11 7.904257315376963E-9 -7.904019375964881E-9 9.596251606611133E-11
peri -3.998115988609449E-13 1.077978375601956E-12 1.905762879895065E-9 -7.904019375964881E-9 8.332717431506468E-9 -9.594678798108227E-11
i -9.556161947534447E-16 2.756111964817367E-15 -5.472457367541825E-13 9.596251606611133E-11 -9.594678798108227E-11 2.352761436082221E-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 15.3   n/a MPO267838  

39221 (2000 YK8)          Discovered 2000-Dec-20 by Kusnirak, P., Pravec, P. at Ondrejov
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 YK8 = 1993 FP71 = 1999 PZ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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