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173681 (2001 OU50)
Classification: Main-belt Asteroid          SPK-ID: 2173681
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2194251114282013 5.2736e-08  
a 2.771733429438265 2.6056e-08 au
q 2.163545512834503 1.4697e-07 au
i 8.850755817124016 8.5215e-06 deg
node 71.37271454856314 5.2804e-05 deg
peri 237.2526908005683 5.7756e-05 deg
M 41.56992562417779 2.5781e-05 deg
tp 2458805.873324963555
(2019-Nov-18.37332496)
0.00011942 TDB
period 1685.487812669282
4.61
2.3767e-05
6.507e-08
d
yr
n .2135880172458045 3.0117e-09 deg/d
Q 3.379921346042027 3.1773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      6073 days (16.63 yr)  
   first obs. used      2001-07-20  
   last obs. used      2018-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65687  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 07:09:25  

Additional Information
 Earth MOID = 1.16386 au 
 Jupiter MOID = 1.93059 au 
 T_jup = 3.284 
[ 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 MPO436862  
diameter diameter 2.724 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.095   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173681 (2001 OU50)          Discovered 2001-Jul-20 by NEAT at Palomar
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 OU50 = 2005 JR88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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