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227207 (2005 QK145)
Classification: Main-belt Asteroid          SPK-ID: 2227207
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 .2438273735035785 4.0418e-08  
a 2.395791248515915 8.6758e-09 au
q 1.81163176092742 9.477e-08 au
i 5.72765826288267 4.3633e-06 deg
node 71.91207924218432 4.6637e-05 deg
peri 262.6223034463884 4.7748e-05 deg
M 52.06975524693657 9.6894e-06 deg
tp 2459004.590758290028
(2020-Jun-04.09075829)
3.6068e-05 TDB
period 1354.47779005528
3.71
7.3574e-06
2.014e-08
d
yr
n .2657850890159723 1.4437e-09 deg/d
Q 2.979950736104409 1.0791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      543  
   data-arc span      6643 days (18.19 yr)  
   first obs. used      2002-12-06  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47206  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:51  

Additional Information
 Earth MOID = .810835 au 
 Jupiter MOID = 2.42157 au 
 T_jup = 3.481 
[ 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 16.88   n/a E2021B55  
diameter diameter 2.377 km 0.633 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.060   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

227207 (2005 QK145)          Discovered 2005-Aug-27 by LONEOS at Anderson Mesa
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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