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249880 (2001 QT266)
Classification: Main-belt Asteroid          SPK-ID: 2249880
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .258477883028386 4.3983e-08  
a 2.729668006297937 1.739e-08 au
q 2.024109198659731 1.2021e-07 au
i 13.87499239281569 5.3416e-06 deg
node 182.1239473260406 1.789e-05 deg
peri 126.2084995231529 2.2443e-05 deg
M 342.3545885098827 9.4381e-06 deg
tp 2458681.240690822129
(2019-Jul-16.74069082)
4.301e-05 TDB
period 1647.263863030103
4.51
1.5742e-05
4.31e-08
d
yr
n .2185442223796426 2.0885e-09 deg/d
Q 3.435226813936143 2.1885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      6667 days (18.25 yr)  
   first obs. used      2001-07-30  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53047  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:48:02  

Additional Information
 Earth MOID = 1.04368 au 
 Jupiter MOID = 2.06429 au 
 T_jup = 3.265 
[ 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 16.7   n/a MPO440261  
diameter diameter 1.629 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249880 (2001 QT266)          Discovered 2001-Aug-20 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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