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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2124142385338584 3.0447e-08  
a 2.154362218534672 6.9011e-09 au
q 1.696745008358516 6.6493e-08 au
i 1.102477453669237 4.0075e-06 deg
node 197.1503775649577 0.00016352 deg
peri 131.5915964088326 0.00016393 deg
M 2.766960358925254 1.5849e-05 deg
tp 2458991.622780681705
(2020-May-22.12278068)
5.0816e-05 TDB
period 1154.985449747288
3.16
5.5496e-06
1.519e-08
d
yr
n .3116922382691213 1.4977e-09 deg/d
Q 2.611979428710828 8.3669e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2001  
   data-arc span      24173 days (66.18 yr)  
   first obs. used      1953-05-18  
   last obs. used      2019-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52193  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:27:51  

Additional Information
 Earth MOID = .685788 au 
 Jupiter MOID = 2.73565 au 
 T_jup = 3.673 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456152.5 (2012-Aug-13.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2128448567378333 3.0404e-08  
q 1.695400712452408 6.6418e-08 au
tp 2456680.717041808076
(2014-Jan-23.21704181)
4.3254e-05 TDB
node 197.3104999236617 0.00016401 deg
peri 131.3146380462857 0.00016441 deg
i 1.099888298506648 4.0058e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2001  
   data-arc span      24173 days (66.18 yr)  
   first obs. used      1953-05-18  
   last obs. used      2019-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52193  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:27:51  

Additional Information
 Jupiter MOID = 2.73565 au 
 T_jup = 3.673 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.244328192701995E-16 -2.012902718035883E-15 8.632744791981075E-14 2.077355932012504E-16 3.832923689657307E-14 3.142407090738037E-17
q -2.012902718035883E-15 4.411354005001146E-15 -4.09567453352784E-14 -9.418561634487696E-17 -4.781643837165121E-14 -7.351824642288312E-17
tp 8.632744791981075E-14 -4.09567453352784E-14 1.870947900578398E-9 1.435624743426419E-12 5.02189695798208E-10 -2.638298425595846E-13
node 2.077355932012504E-16 -9.418561634487696E-17 1.435624743426419E-12 2.690009343927682E-8 -2.689441273096827E-8 4.589766108807911E-11
peri 3.832923689657307E-14 -4.781643837165121E-14 5.02189695798208E-10 -2.689441273096827E-8 2.703180756035415E-8 -4.596819691710594E-11
i 3.142407090738037E-17 -7.351824642288312E-17 -2.638298425595846E-13 4.589766108807911E-11 -4.596819691710594E-11 1.604659199747341E-11

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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