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266669 (2008 XR11)
Classification: Main-belt Asteroid          SPK-ID: 2266669
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1989215918192645 6.1349e-08  
a 2.730063030770177 2.3158e-08 au
q 2.186994546922448 1.6299e-07 au
i 8.092090473786072 5.8286e-06 deg
node 151.9835500964983 4.6591e-05 deg
peri 254.6690837164196 5.0381e-05 deg
M 208.7811276057154 1.4759e-05 deg
tp 2459692.587383691468
(2022-Apr-23.08738369)
6.8156e-05 TDB
period 1647.621452164361
4.51
2.0964e-05
5.74e-08
d
yr
n .2184967909510367 2.7802e-09 deg/d
Q 3.273131514617907 2.7765e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      8461 days (23.16 yr)  
   first obs. used      1996-02-10  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5826  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:48:44  

Additional Information
 Earth MOID = 1.21277 au 
 Jupiter MOID = 2.18602 au 
 T_jup = 3.312 
[ 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 16.5   n/a MPO251743  
diameter diameter 3.514 km 0.824 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266669 (2008 XR11)          Discovered 2008-Dec-01 by CSS at Catalina
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2008 XR11 = 2005 EJ73 = 2010 FX19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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