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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04002254501364505 4.0678e-08  
a 2.80934699355189 2.0877e-08 au
q 2.696909777043511 1.1761e-07 au
i 5.254099354313027 4.4669e-06 deg
node 116.29917178025 7.7016e-05 deg
peri 5.344534427817202 0.00012207 deg
M 307.9114538609975 9.5429e-05 deg
tp 2458849.354923707696
(2019-Dec-31.85492371)
0.00045693 TDB
period 1719.913093671273
4.71
1.9172e-05
5.249e-08
d
yr
n .2093129015208293 2.3332e-09 deg/d
Q 2.921784210060269 2.1712e-08 au
  Orbit Determination Parameters
   # obs. used (total)      668  
   data-arc span      9825 days (26.90 yr)  
   first obs. used      1992-02-27  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51112  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:07:15  

Additional Information
 Earth MOID = 1.7131 au 
 Jupiter MOID = 2.10133 au 
 T_jup = 3.314 
[ 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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