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268319 (2005 QR166)
Classification: Main-belt Asteroid          SPK-ID: 2268319
[ 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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1981149599529336 7.8382e-08  
a 3.173362797314069 5.0981e-08 au
q 2.544672153808063 2.4624e-07 au
i 23.65670965105327 7.7723e-06 deg
node 285.1844522386912 2.3235e-05 deg
peri 25.90135979054839 3.3693e-05 deg
M 224.9311953786149 2.8679e-05 deg
tp 2459775.194676170312
(2022-Jul-14.69467617)		 0.00017648 TDB
period 2064.800115785999
5.65		 4.9758e-05
1.362e-07		 d
yr
n .1743510169568934 4.2015e-09 deg/d
Q 3.802053440820075 6.1081e-08 au
   Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      5326 days (14.58 yr)  
   first obs. used      2005-06-30  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51436  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 13:02:42  

Additional Information
 Earth MOID = 1.54566 au 
 Jupiter MOID = 1.49094 au 
 T_jup = 3.042 
[ 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 15.0   n/a MPO338801  
diameter diameter 6.457 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268319 (2005 QR166)          Discovered 2005-Aug-26 by NEAT at Palomar
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 2005 QR166 = 2010 DP56 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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