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227170 (2005 QQ38)
Classification: Main-belt Asteroid          SPK-ID: 2227170
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1450762665856437 5.2976e-08  
a 2.391132074639077 1.1983e-08 au
q 2.044235560337254 1.2521e-07 au
i 4.688766504257796 4.4581e-06 deg
node 137.3548253987578 6.2688e-05 deg
peri 237.743073665555 6.4381e-05 deg
M 20.18693625087775 1.2999e-05 deg
tp 2459124.769349840389
(2020-Oct-02.26934984)		 4.8892e-05 TDB
period 1350.528565535761
3.70		 1.0152e-05
2.779e-08		 d
yr
n .2665622995224735 2.0038e-09 deg/d
Q 2.738028588940899 1.3722e-08 au
   Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      5688 days (15.57 yr)  
   first obs. used      2005-06-17  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52757  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 13:11:01  

Additional Information
 Earth MOID = 1.0479 au 
 Jupiter MOID = 2.73185 au 
 T_jup = 3.513 
[ 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  

227170 (2005 QQ38)          Discovered 2005-Aug-25 by CINEOS at Campo Imperatore
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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