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173733 (2001 QH238)
Classification: Main-belt Asteroid          SPK-ID: 2173733
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .117940442490642 9.8913e-08  
a 3.057669263290491 3.1204e-08 au
q 2.697046397387976 3.1318e-07 au
i 6.284510300212101 9.0217e-06 deg
node 1.81941412290417 4.6333e-05 deg
peri 355.4989957435974 5.3968e-05 deg
M 105.1075637202009 2.416e-05 deg
tp 2458030.315171730720
(2017-Oct-03.81517173)
0.00013021 TDB
period 1952.918809186423
5.35
2.9895e-05
8.185e-08
d
yr
n .1843394606609244 2.8218e-09 deg/d
Q 3.418292129193008 3.4884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      290  
   data-arc span      6317 days (17.30 yr)  
   first obs. used      2001-08-24  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64595  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:59:20  

Additional Information
 Earth MOID = 1.69219 au 
 Jupiter MOID = 2.01853 au 
 T_jup = 3.215 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO427060  
diameter diameter 4.566 km 1.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173733 (2001 QH238)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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