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JPL Small-Body Database Browser
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5020 Asimov (1981 EX19)
Classification: Main-belt Asteroid          SPK-ID: 2005020
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 .2124142494554682 3.1667e-08  
a 2.154362217182138 7.2379e-09 au
q 1.696744983764176 6.9446e-08 au
i 1.102482040065419 4.1103e-06 deg
node 197.1503869454358 0.00016861 deg
peri 131.5915642780324 0.00016901 deg
M 2.766981064635676 1.6269e-05 deg
tp 2458991.622714260081
(2020-May-22.12271426)
5.2162e-05 TDB
period 1154.985448659618
3.16
5.8206e-06
1.594e-08
d
yr
n .3116922385626473 1.5708e-09 deg/d
Q 2.611979450600101 8.7754e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1949  
   data-arc span      24099 days (65.98 yr)  
   first obs. used      1953-05-18  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51207  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:49:13  

Additional Information
 Earth MOID = .685788 au 
 Jupiter MOID = 2.73565 au 
 T_jup = 3.673 
[ 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 14.6   n/a MPO384799  
diameter diameter 3.457 km 0.328 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5020 Asimov (1981 EX19)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 EX19 = 1963 UH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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