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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .36726272964914 6.7909e-08  
a 2.397533439921161 1.1623e-08 au
q 1.517008764350623 1.686e-07 au
i 6.745494867422297 4.1547e-06 deg
node 246.895149560936 4.6843e-05 deg
peri 107.0935665713073 4.7642e-05 deg
M 321.2400508355116 7.8143e-06 deg
tp 2459146.491017278809
(2020-Oct-23.99101728)
3.0134e-05 TDB
period 1355.955499253427
3.71
9.8599e-06
2.699e-08
d
yr
n .2654954386026766 1.9306e-09 deg/d
Q 3.278058115491699 1.5891e-08 au
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      10520 days (28.80 yr)  
   first obs. used      1992-01-27  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40551  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:20:59  

Additional Information
 Earth MOID = .530902 au 
 Jupiter MOID = 2.24121 au 
 T_jup = 3.424 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458009.5 (2017-Sep-13.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3674371619412823 6.7718e-08  
q 1.516052460423746 1.6797e-07 au
tp 2457792.019166807755
(2017-Feb-07.51916681)
2.4895e-05 TDB
node 246.8922939785078 4.6832e-05 deg
peri 107.2511699266357 4.7635e-05 deg
i 6.747077214182029 4.1543e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      10520 days (28.80 yr)  
   first obs. used      1992-01-27  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40551  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:20:59  

Additional Information
 Jupiter MOID = 2.24121 au 
 T_jup = 3.424 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.585703568709434E-15 -1.137025361878547E-14 -1.041153888238004E-12 -2.207485879796562E-14 -2.539087222768607E-13 -4.630235915913177E-14
q -1.137025361878547E-14 2.821380809902619E-14 2.567343177333773E-12 5.913028825925986E-14 6.24491715214093E-13 1.156578610727635E-13
tp -1.041153888238004E-12 2.567343177333773E-12 6.197481581520525E-10 -1.297274052518118E-11 2.350219038816881E-10 1.250409107969894E-11
node -2.207485879796562E-14 5.913028825925986E-14 -1.297274052518118E-11 2.193235322116959E-9 -2.184231465071778E-9 8.852577764845166E-11
peri -2.539087222768607E-13 6.24491715214093E-13 2.350219038816881E-10 -2.184231465071778E-9 2.269137080152943E-9 -8.413369638398153E-11
i -4.630235915913177E-14 1.156578610727635E-13 1.250409107969894E-11 8.852577764845166E-11 -8.413369638398153E-11 1.725848703050857E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1997-May-27 06:30 < 00:01 Iris 0.0331243585592613 0.0331191776237865 0.0331295395556775 5.96331265968306 5.96331263058005 2450595.771004857 0.458783258258698 268.596852132264 70.8961262375589 -16.5217261726798 26599.3976052142 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:21:01 2020-Dec-18 00:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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