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226717 (2004 PK22)
Classification: Main-belt Asteroid          SPK-ID: 2226717
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1824486108608346 6.4397e-08  
a 2.75007812867418 2.3059e-08 au
q 2.248330194338813 1.7146e-07 au
i 10.95492387667485 6.9516e-06 deg
node 136.7520151831293 3.0865e-05 deg
peri 178.9975594793613 3.5498e-05 deg
M 169.2429124483837 1.8538e-05 deg
tp 2458217.387845352783
(2018-Apr-08.88784535)
8.1153e-05 TDB
period 1665.7736007644
4.56
2.0951e-05
5.736e-08
d
yr
n .2161158033929708 2.7181e-09 deg/d
Q 3.251826063009548 2.7266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      8903 days (24.38 yr)  
   first obs. used      1995-07-22  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61895  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:36:44  

Additional Information
 Earth MOID = 1.23476 au 
 Jupiter MOID = 2.06059 au 
 T_jup = 3.296 
[ 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 16.1   n/a MPO459997  

226717 (2004 PK22)          Discovered 2004-Aug-08 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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