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19116 (1981 EZ40)
Classification: Main-belt Asteroid          SPK-ID: 2019116
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783642900159051 3.3033e-08  
a 2.284058201428889 6.117e-09 au
q 1.87666378197602 7.6573e-08 au
i 5.339928526644115 3.5569e-06 deg
node 349.5921396035144 3.4529e-05 deg
peri 22.3232604221227 3.5748e-05 deg
M 291.9440223435188 9.5683e-06 deg
tp 2459238.854278864536
(2021-Jan-24.35427886)
3.3908e-05 TDB
period 1260.837671370388
3.45
5.065e-06
1.387e-08
d
yr
n .2855244637548945 1.147e-09 deg/d
Q 2.691452620881758 7.2081e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1481  
   data-arc span      17472 days (47.84 yr)  
   first obs. used      1972-10-05  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50365  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:24:51  

Additional Information
 Earth MOID = .877637 au 
 Jupiter MOID = 2.77891 au 
 T_jup = 3.576 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO474018  
diameter diameter 3.260 km 0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.169   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19116 (1981 EZ40)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EZ40 = 1972 TR2 = 1996 SU7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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