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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183605625578064 9.8867e-08  
a 3.056455776035442 2.8776e-08 au
q 2.694691950950831 3.1254e-07 au
i 6.286119402177198 8.459e-06 deg
node 1.80867000003756 4.0883e-05 deg
peri 355.4268441026755 4.5935e-05 deg
M 178.9374456441137 2.083e-05 deg
tp 2458030.382510834661
(2017-Oct-03.88251083)
0.0001072 TDB
period 1951.756351737162
5.34
2.7564e-05
7.547e-08
d
yr
n .1844492524282458 2.6049e-09 deg/d
Q 3.418219601120054 3.2182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      6812 days (18.65 yr)  
   first obs. used      2001-08-24  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60628  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:29:21  

Additional Information
 Earth MOID = 1.69071 au 
 Jupiter MOID = 2.0221 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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