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266691 (2009 PB)
Classification: Mars-crossing Asteroid          SPK-ID: 2266691
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3672627160274287 8.2568e-08  
a 2.397533439564863 1.6257e-08 au
q 1.517008796783688 2.0554e-07 au
i 6.745492235122491 6.0166e-06 deg
node 246.8951852110111 6.2563e-05 deg
peri 107.093531824224 6.3067e-05 deg
M 321.2400511506858 1.2472e-05 deg
tp 2459146.491016059149
(2020-Oct-23.99101606)
4.8225e-05 TDB
period 1355.955498951164
3.71
1.3792e-05
3.776e-08
d
yr
n .2654954386618595 2.7004e-09 deg/d
Q 3.278058082346038 2.2228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      10369 days (28.39 yr)  
   first obs. used      1992-01-27  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49312  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:57:28  

Additional Information
 Earth MOID = .530902 au 
 Jupiter MOID = 2.24121 au 
 T_jup = 3.424 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457131.5 (2015-Apr-19.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3666977906172241 8.2143e-08  
q 1.518454561213552 2.0399e-07 au
tp 2457792.372964740479
(2017-Feb-07.87296474)
3.7677e-05 TDB
node 246.9366091140164 6.2579e-05 deg
peri 107.1909988119019 6.3094e-05 deg
i 6.743121693191063 6.0157e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      10369 days (28.39 yr)  
   first obs. used      1992-01-27  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49312  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:57:28  

Additional Information
 Jupiter MOID = 2.24121 au 
 T_jup = 3.424 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.747469033714564E-15 -1.6746726699263E-14 -1.898953861129403E-12 -1.214940160090657E-13 -4.129877978516818E-13 -2.247575358438913E-14
q -1.6746726699263E-14 4.161349418564016E-14 4.811048190736611E-12 3.035742578651589E-13 1.038677423731892E-12 5.647095486036066E-14
tp -1.898953861129403E-12 4.811048190736611E-12 1.419576908086496E-9 2.837746616642041E-11 3.678112064036287E-10 3.71004764372443E-12
node -1.214940160090657E-13 3.035742578651589E-13 2.837746616642041E-11 3.916123364476318E-9 -3.880237571011054E-9 9.393963028130066E-11
peri -4.129877978516818E-13 1.038677423731892E-12 3.678112064036287E-10 -3.880237571011054E-9 3.980823577156709E-9 -9.198428224374631E-11
i -2.247575358438913E-14 5.647095486036066E-14 3.71004764372443E-12 9.393963028130066E-11 -9.198428224374631E-11 3.61886348220591E-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 16.1   n/a MPO268292  

266691 (2009 PB)          Discovered 2009-Aug-01 by Tozzi, F. at Skylive
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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