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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .150044092872389 4.8947e-08  
a 2.736185335208566 2.2489e-08 au
q 2.325636888656463 1.3571e-07 au
i 4.638136527349758 5.0108e-06 deg
node 149.8955223250286 6.7317e-05 deg
peri 257.300263503162 6.9317e-05 deg
M 2.915436661430264 1.6663e-05 deg
tp 2458587.111935277849
(2019-Apr-13.61193528)
7.6467e-05 TDB
period 1653.166869902103
4.53
2.0381e-05
5.58e-08
d
yr
n .2177638607174111 2.6847e-09 deg/d
Q 3.146733781760669 2.5863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      10282 days (28.15 yr)  
   first obs. used      1991-10-03  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62645  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:34:40  

Additional Information
 Earth MOID = 1.34012 au 
 Jupiter MOID = 2.24622 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457190.5 (2015-Jun-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1474244129029794 4.8693e-08  
q 2.333884036556482 1.3449e-07 au
tp 2456932.255257115439
(2014-Oct-01.75525712)
7.5049e-05 TDB
node 149.9320703123237 6.7207e-05 deg
peri 257.1307153944177 6.9321e-05 deg
i 4.638795362040809 5.0145e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      10282 days (28.15 yr)  
   first obs. used      1991-10-03  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62645  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:34:40  

Additional Information
 Jupiter MOID = 2.24622 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.370988916193979E-15 -6.481320990087404E-15 -1.288068591210873E-13 -8.374146625489309E-15 -3.588220301262791E-14 -2.965064581012378E-15
q -6.481320990087404E-15 1.80880315315E-14 4.061448585232394E-13 2.166564890809355E-14 1.21200175474714E-13 8.288612476916837E-15
tp -1.288068591210873E-13 4.061448585232394E-13 5.632391652088328E-9 1.058159423708575E-11 1.309800637714555E-9 -1.547314928786584E-12
node -8.374146625489309E-15 2.166564890809355E-14 1.058159423708575E-11 4.516843377027886E-9 -4.499164697136445E-9 2.041404292419468E-11
peri -3.588220301262791E-14 1.21200175474714E-13 1.309800637714555E-9 -4.499164697136445E-9 4.80540908879177E-9 -2.067605163985045E-11
i -2.965064581012378E-15 8.288612476916837E-15 -1.547314928786584E-12 2.041404292419468E-11 -2.067605163985045E-11 2.514522536326082E-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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