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JPL Small-Body Database Browser
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19932 (1981 EU4)
Classification: Main-belt Asteroid          SPK-ID: 2019932
[ 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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07242124416756884 3.6285e-08  
a 2.984146754458649 1.6451e-08 au
q 2.768031133722141 1.0401e-07 au
i 9.020255060800741 3.8801e-06 deg
node 261.0848674266113 3.7172e-05 deg
peri 26.28387255406112 5.6888e-05 deg
M 118.0605344119873 4.4021e-05 deg
tp 2458383.008567212557
(2018-Sep-21.50856721)		 0.00022971 TDB
period 1882.906230355914
5.16		 1.557e-05
4.263e-08		 d
yr
n .1911938014735612 1.581e-09 deg/d
Q 3.200262375195158 1.7643e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1967  
   data-arc span      14247 days (39.01 yr)  
   first obs. used      1981-02-02  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48563  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:58:34  

Additional Information
 Earth MOID = 1.75485 au 
 Jupiter MOID = 1.91819 au 
 T_jup = 3.236 
[ 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 12.5   n/a MPO350961  
diameter diameter 10.791 km 0.327 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.182   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19932 (1981 EU4)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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