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JPL Small-Body Database Browser
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39550 (1992 ES4)
Classification: Main-belt Asteroid          SPK-ID: 2039550
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03981645927205605 4.0427e-08  
a 2.808873625014456 1.7231e-08 au
q 2.697034222723715 1.174e-07 au
i 5.25456229333781 4.4396e-06 deg
node 116.2981960542761 5.9557e-05 deg
peri 5.054095230468731 9.59e-05 deg
M 31.91225609505174 7.3525e-05 deg
tp 2458848.076568430020
(2019-Dec-30.57656843)
0.00035117 TDB
period 1719.478409854615
4.71
1.5822e-05
4.332e-08
d
yr
n .2093658157827284 1.9266e-09 deg/d
Q 2.920713027305196 1.7917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      825  
   data-arc span      10205 days (27.94 yr)  
   first obs. used      1992-02-27  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:29:43  

Additional Information
 Earth MOID = 1.7129 au 
 Jupiter MOID = 2.10109 au 
 T_jup = 3.315 
[ 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 15.0   n/a MPO381562  
diameter diameter 5.338 km 0.256 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.090   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39550 (1992 ES4)          Discovered 1992-Mar-01 by UESAC at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 ES4 = 2000 YR44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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