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172236 (2002 RH173)
Classification: Main-belt Asteroid          SPK-ID: 2172236
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2332259160764279 5.3877e-08  
a 2.787379303242258 1.7865e-08 au
q 2.137290211791107 1.5274e-07 au
i 9.027721233461222 5.041e-06 deg
node 76.80471146192772 3.4428e-05 deg
peri 315.2398087803538 3.5566e-05 deg
M 272.9121426522054 1.2024e-05 deg
tp 2459411.694823008803
(2021-Jul-16.19482301)
5.9519e-05 TDB
period 1699.779289459322
4.65
1.6342e-05
4.474e-08
d
yr
n .2117922028068193 2.0362e-09 deg/d
Q 3.437468394693409 2.2032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      6130 days (16.78 yr)  
   first obs. used      2002-09-09  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57516  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:45:25  

Additional Information
 Earth MOID = 1.15488 au 
 Jupiter MOID = 2.02611 au 
 T_jup = 3.273 
[ 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 15.4   n/a MPO436856  
diameter diameter 5.430 km 0.420 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.056   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172236 (2002 RH173)          Discovered 2002-Sep-13 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2002 RH173 = 2004 CW63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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