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266086 (2006 SA21)
Classification: Main-belt Asteroid          SPK-ID: 2266086
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1294670898234765 4.3155e-08  
a 2.234924825817643 1.1514e-08 au
q 1.945575612644792 9.487e-08 au
i 2.359444392408246 4.4307e-06 deg
node 157.0774760035376 0.00011888 deg
peri 256.3995998870732 0.00012062 deg
M 48.29222810574688 2.0887e-05 deg
tp 2459036.792887257374
(2020-Jul-06.29288726)
7.0185e-05 TDB
period 1220.373606665959
3.34
9.4308e-06
2.582e-08
d
yr
n .294991630459392 2.2796e-09 deg/d
Q 2.524274038990493 1.3005e-08 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      6245 days (17.10 yr)  
   first obs. used      2003-12-14  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59098  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 23:11:41  

Additional Information
 Earth MOID = .957455 au 
 Jupiter MOID = 2.79223 au 
 T_jup = 3.627 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457500.5 (2016-Apr-22.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298197877027293 4.3231e-08  
q 1.944588450629572 9.5112e-08 au
tp 2457814.468100542517
(2017-Mar-01.96810054)
6.5692e-05 TDB
node 157.1510711409518 0.00011888 deg
peri 255.8034916076744 0.00012061 deg
i 2.359247929851357 4.431e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      6245 days (17.10 yr)  
   first obs. used      2003-12-14  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59098  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 23:11:41  

Additional Information
 Jupiter MOID = 2.79223 au 
 T_jup = 3.627 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.86889297194125E-15 -4.089621805378456E-15 2.206136074556241E-13 -4.258759751363137E-15 2.958763818011995E-14 -2.151509287059951E-15
q -4.089621805378456E-15 9.046223002232655E-15 -2.395394037763391E-13 6.207056952823864E-15 4.672178053203079E-15 4.637885070943327E-15
tp 2.206136074556241E-13 -2.395394037763391E-13 4.31541839092037E-9 -1.350520612489424E-11 1.357750998587866E-9 -1.869828200445371E-12
node -4.258759751363137E-15 6.207056952823864E-15 -1.350520612489424E-11 1.413364303426306E-8 -1.41244389705424E-8 -1.133753137327085E-11
peri 2.958763818011995E-14 4.672178053203079E-15 1.357750998587866E-9 -1.41244389705424E-8 1.45475189960739E-8 1.083266447504286E-11
i -2.151509287059951E-15 4.637885070943327E-15 -1.869828200445371E-12 -1.133753137327085E-11 1.083266447504286E-11 1.963384984343059E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO440309  

266086 (2006 SA21)          Discovered 2006-Sep-16 by LONEOS at Anderson Mesa
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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