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JPL Small-Body Database Browser
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66228 (1999 CY109)
Classification: Main-belt Asteroid          SPK-ID: 2066228
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1015841112106613 4.1498e-08  
a 2.376335129876149 9.6197e-09 au
q 2.134937237769009 1.0225e-07 au
i 5.730326532226965 4.1718e-06 deg
node 230.0735468052545 4.6271e-05 deg
peri 197.7798336887245 5.3603e-05 deg
M 358.0582555189578 2.8283e-05 deg
tp 2459007.716880897221
(2020-Jun-07.21688090)
0.00010514 TDB
period 1338.011848811912
3.66
8.1247e-06
2.224e-08
d
yr
n .2690559133087364 1.6338e-09 deg/d
Q 2.617733021983289 1.0597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      10685 days (29.25 yr)  
   first obs. used      1990-10-24  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55331  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:53:19  

Additional Information
 Earth MOID = 1.14942 au 
 Jupiter MOID = 2.63474 au 
 T_jup = 3.528 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457266.5 (2015-Sep-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1011597922102111 4.1504e-08  
q 2.136297574633399 1.0231e-07 au
tp 2457666.322605903688
(2016-Oct-04.82260590)
0.0001024 TDB
node 230.097693354079 4.6286e-05 deg
peri 196.9691700909851 5.3684e-05 deg
i 5.72798963699638 4.1738e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      10685 days (29.25 yr)  
   first obs. used      1990-10-24  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55331  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:53:19  

Additional Information
 Jupiter MOID = 2.63474 au 
 T_jup = 3.528 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.722589332251816E-15 -4.233238529649773E-15 -1.265327592624812E-12 4.587241237752242E-15 -2.498834362131305E-13 -1.822874631761747E-15
q -4.233238529649773E-15 1.046781336368226E-14 3.339553094343238E-12 -1.191508987440194E-14 6.699321404578561E-13 4.919347807446133E-15
tp -1.265327592624812E-12 3.339553094343238E-12 1.048633673751993E-8 -1.905802216491773E-11 2.796310837399977E-9 1.086548967034671E-11
node 4.587241237752242E-15 -1.191508987440194E-14 -1.905802216491773E-11 2.142414577287837E-9 -2.136691594281804E-9 -5.476648194192837E-11
peri -2.498834362131305E-13 6.699321404578561E-13 2.796310837399977E-9 -2.136691594281804E-9 2.881960475784834E-9 5.734315319113133E-11
i -1.822874631761747E-15 4.919347807446133E-15 1.086548967034671E-11 -5.476648194192837E-11 5.734315319113133E-11 1.742040918404671E-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 15.6   n/a MPO453058  

66228 (1999 CY109)          Discovered 1999-Feb-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 CY109 = 2001 SM281 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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