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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2124142377268402 2.8086e-08  
a 2.154362219061844 4.3845e-09 au
q 1.696745010512318 5.9607e-08 au
i 1.102476499555463 3.9373e-06 deg
node 197.150584424859 0.00013799 deg
peri 131.5913904522387 0.00013834 deg
M 2.766958998873242 1.0864e-05 deg
tp 2458991.622785041892
(2020-May-22.12278504)
3.4842e-05 TDB
period 1154.985450171225
3.16
3.5259e-06
9.653e-09
d
yr
n .3116922381547148 9.5153e-10 deg/d
Q 2.611979427611369 5.3159e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2352  
   data-arc span      24637 days (67.45 yr)  
   first obs. used      1953-05-18  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49222  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:46:51  

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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