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308344 (2005 QP9)
Classification: Main-belt Asteroid          SPK-ID: 2308344
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1674949490238816 9.5499e-08  
a 2.997933033775816 5.4795e-08 au
q 2.495794393106525 2.6557e-07 au
i 2.956840413584303 7.9943e-06 deg
node 157.3171878190564 0.00016924 deg
peri 173.8582363073206 0.00017353 deg
M 305.0638093339778 5.3405e-05 deg
tp 2459289.825930921928
(2021-Mar-16.32593092)
0.00028796 TDB
period 1895.96937590933
5.19
5.198e-05
1.423e-07
d
yr
n .1898764845963505 5.2057e-09 deg/d
Q 3.500071674445106 6.3973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      5437 days (14.89 yr)  
   first obs. used      2004-05-09  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62571  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:23:41  

Additional Information
 Earth MOID = 1.48516 au 
 Jupiter MOID = 1.8647 au 
 T_jup = 3.230 
[ 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 16.6   n/a MPO433983  

308344 (2005 QP9)          Discovered 2005-Jul-29 by NEAT at Palomar
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 QP9 = 2011 UL253 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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