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249871 (2001 QZ190)
Classification: Main-belt Asteroid          SPK-ID: 2249871
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1464609734810917 4.993e-08  
a 2.666194100815727 1.8624e-08 au
q 2.275700717320712 1.2995e-07 au
i 8.184776957067703 4.8226e-06 deg
node 227.3412183684339 3.5959e-05 deg
peri 124.7548542594049 4.0185e-05 deg
M 97.79393410198973 1.7977e-05 deg
tp 2458568.538054656571
(2019-Mar-26.03805466)
7.7415e-05 TDB
period 1590.14259679395
4.35
1.6661e-05
4.562e-08
d
yr
n .2263947904583105 2.3721e-09 deg/d
Q 3.056687484310742 2.1351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      6736 days (18.44 yr)  
   first obs. used      2001-08-22  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50123  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:28:02  

Additional Information
 Earth MOID = 1.28293 au 
 Jupiter MOID = 2.45032 au 
 T_jup = 3.353 
[ 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 16.1   n/a MPO460092  
diameter diameter 1.666 km 0.361 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.253   0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249871 (2001 QZ190)          Discovered 2001-Aug-22 by Tucker, R. A. at Goodricke-Pigott
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 2001 QZ190 = 2006 WT147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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