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187090 (2005 PK9)
Classification: Main-belt Asteroid          SPK-ID: 2187090
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07422043673224621 6.422e-08  
a 2.512004562575317 1.6489e-08 au
q 2.325562486867582 1.6459e-07 au
i 1.422571590391832 5.8657e-06 deg
node 358.8483767716132 0.00015816 deg
peri 346.0398906901335 0.00016146 deg
M 290.4709620594239 3.3652e-05 deg
tp 2459481.361869362869
(2021-Sep-23.86186936)		 0.00013732 TDB
period 1454.216482285403
3.98		 1.4318e-05
3.92e-08		 d
yr
n .2475559893491476 2.4375e-09 deg/d
Q 2.698446638283053 1.7713e-08 au
   Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      6877 days (18.83 yr)  
   first obs. used      2001-08-25  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56875  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:58  

Additional Information
 Earth MOID = 1.31602 au 
 Jupiter MOID = 2.57736 au 
 T_jup = 3.457 
[ 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 17.22   n/a E2021B55  

187090 (2005 PK9)          Discovered 2005-Aug-04 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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Alternate Designations
 2005 PK9 = 2004 GF66 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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