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2032 Ethel (1970 OH)
Classification: Main-belt Asteroid          SPK-ID: 2002032
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262910826961075 3.6436e-08  
a 3.069859479695728 1.3704e-08 au
q 2.682163602280045 1.0945e-07 au
i 1.507847242187473 3.8233e-06 deg
node 30.13648201815166 0.00013639 deg
peri 296.4311968500843 0.0001372 deg
M 92.52348642640388 1.6008e-05 deg
tp 2458495.576411517863
(2019-Jan-12.07641152)		 8.6831e-05 TDB
period 1964.609191398736
5.38		 1.3155e-05
3.602e-08		 d
yr
n .183242551025475 1.227e-09 deg/d
Q 3.457555357111411 1.5434e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3207  
   data-arc span      25095 days (68.71 yr)  
   first obs. used      1952-02-26  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:04:00  

Additional Information
 Earth MOID = 1.67094 au 
 Jupiter MOID = 1.86423 au 
 T_jup = 3.218 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456861.5 (2014-Jul-23.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305963851311462 3.7034e-08  
q 2.665434601111861 1.12e-07 au
tp 2456523.919462510289
(2013-Aug-19.41946251)		 8.18e-05 TDB
node 30.11962560470246 0.00013611 deg
peri 295.1316715471187 0.00013686 deg
i 1.514386125953653 3.8196e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      3207  
   data-arc span      25095 days (68.71 yr)  
   first obs. used      1952-02-26  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:04:00  

Additional Information
 Jupiter MOID = 1.86423 au 
 T_jup = 3.218 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.371515390390778E-15 -4.125991331670217E-15 6.430931980065269E-13 1.667256421071233E-15 7.455045689402168E-14 9.950645885301863E-17
q -4.125991331670217E-15 1.254370718143062E-14 -1.969802240980717E-12 -6.529136301065013E-15 -2.263709913405708E-13 -2.444794273299001E-16
tp 6.430931980065269E-13 -1.969802240980717E-12 6.691225395823744E-9 -4.91014059674324E-12 1.187429693058371E-9 -1.64540935468378E-13
node 1.667256421071233E-15 -6.529136301065013E-15 -4.91014059674324E-12 1.852638035446184E-8 -1.852036396815366E-8 -1.750116452868512E-11
peri 7.455045689402168E-14 -2.263709913405708E-13 1.187429693058371E-9 -1.852036396815366E-8 1.873165972602385E-8 1.74682571303756E-11
i 9.950645885301863E-17 -2.444794273299001E-16 -1.64540935468378E-13 -1.750116452868512E-11 1.74682571303756E-11 1.458921024727084E-11

[ 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 11.4   n/a MPO358647  
diameter diameter 36.007 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.034   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2032 Ethel (1970 OH)          Discovered 1970-Jul-30 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1970 OH = 1952 DU = 1960 WM = 1965 UG1 = 1971 UD3 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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