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266697 (2009 PD20)
Classification: Main-belt Asteroid          SPK-ID: 2266697
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .150182104871677 4.2949e-08  
a 2.735977375949313 1.993e-08 au
q 2.325082534747958 1.1427e-07 au
i 4.638725116700409 4.8347e-06 deg
node 149.8886625645571 5.6848e-05 deg
peri 257.2206252747465 5.9343e-05 deg
M 90.0864061460185 1.6644e-05 deg
tp 2458586.858655926394
(2019-Apr-13.35865593)
7.5123e-05 TDB
period 1652.978404146044
4.53
1.8061e-05
4.945e-08
d
yr
n .2177886892514981 2.3797e-09 deg/d
Q 3.146872217150668 2.2923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      10349 days (28.33 yr)  
   first obs. used      1991-10-03  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57994  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:48:59  

Additional Information
 Earth MOID = 1.34006 au 
 Jupiter MOID = 2.24723 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457470.5 (2016-Mar-23.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1481127072279618 4.2765e-08  
q 2.333276791608082 1.1351e-07 au
tp 2456933.309757869263
(2014-Oct-02.80975787)
7.4412e-05 TDB
node 149.9301183507735 5.6765e-05 deg
peri 257.3458105537405 5.9356e-05 deg
i 4.639295811479992 4.837e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      10349 days (28.33 yr)  
   first obs. used      1991-10-03  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57994  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:48:59  

Additional Information
 Jupiter MOID = 2.24723 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.828859446835044E-15 -4.803335048680267E-15 -3.844349240200185E-14 -4.375870436760349E-15 -3.981460213835132E-14 -1.985178485832315E-15
q -4.803335048680267E-15 1.288543659675614E-14 9.829611095472863E-14 9.604812520359526E-15 1.255412764134282E-13 5.299059753841833E-15
tp -3.844349240200185E-14 9.829611095472863E-14 5.537073663676713E-9 -7.823557761735516E-12 1.308082052016605E-9 -2.362018079715188E-12
node -4.375870436760349E-15 9.604812520359526E-15 -7.823557761735516E-12 3.22228376217845E-9 -3.21333119000837E-9 -2.588627431214625E-11
peri -3.981460213835132E-14 1.255412764134282E-13 1.308082052016605E-9 -3.21333119000837E-9 3.523171695153285E-9 2.530935902230616E-11
i -1.985178485832315E-15 5.299059753841833E-15 -2.362018079715188E-12 -2.588627431214625E-11 2.530935902230616E-11 2.339662287111036E-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 16.7   n/a MPO418415  

266697 (2009 PD20)          Discovered 2009-Aug-15 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 PD20 = 2002 CF298 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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