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243953 (2001 QE173)
Classification: Main-belt Asteroid          SPK-ID: 2243953
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1329349400552544 7.9024e-08  
a 2.710454175859441 2.152e-08 au
q 2.350140112469052 2.1291e-07 au
i 9.018769303379246 6.6205e-06 deg
node 299.3985356753479 4.9342e-05 deg
peri 45.58121442233383 5.4324e-05 deg
M 339.9082837280092 2.0864e-05 deg
tp 2458691.465365035488
(2019-Jul-26.96536504)
9.4381e-05 TDB
period 1629.90214322447
4.46
1.9412e-05
5.315e-08
d
yr
n .2208721557281987 2.6305e-09 deg/d
Q 3.07076823924983 2.4381e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      6649 days (18.20 yr)  
   first obs. used      2001-08-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51042  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:17:38  

Additional Information
 Earth MOID = 1.35078 au 
 Jupiter MOID = 2.32378 au 
 T_jup = 3.333 
[ 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 16.0   n/a MPO348658  
diameter diameter 3.785 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243953 (2001 QE173)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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