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JPL Small-Body Database Browser
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266700 (2009 PD21)
Classification: Main-belt Asteroid          SPK-ID: 2266700
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05796049431652431 6.6034e-08  
a 3.189482173194908 5.0957e-08 au
q 3.004618209822789 2.3614e-07 au
i 1.061972992442435 7.5947e-06 deg
node 42.37764653482046 0.00033541 deg
peri 273.585349476625 0.00034221 deg
M 278.8508078271785 6.7597e-05 deg
tp 2459069.486558426083
(2020-Aug-07.98655843)
0.00038941 TDB
period 2080.552578685263
5.70
4.9861e-05
1.365e-07
d
yr
n .1730309551837859 4.1467e-09 deg/d
Q 3.374346136567027 5.3911e-08 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      5317 days (14.56 yr)  
   first obs. used      2004-11-10  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57368  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:48  

Additional Information
 Earth MOID = 1.99031 au 
 Jupiter MOID = 1.8051 au 
 T_jup = 3.194 
[ show covariance matrix ]

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 16.3   n/a MPO437228  

266700 (2009 PD21)          Discovered 2009-Aug-15 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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