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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1780201122130181 3.0454e-08  
a 2.283227253586081 5.9331e-09 au
q 1.876766881694865 7.1154e-08 au
i 5.341259063331957 3.4512e-06 deg
node 349.5792495385201 3.2742e-05 deg
peri 22.37085855963842 3.4028e-05 deg
M 349.0097062557141 9.465e-06 deg
tp 2459238.970597889000
(2021-Jan-24.47059789)
3.319e-05 TDB
period 1260.149688650576
3.45
4.9119e-06
1.345e-08
d
yr
n .2856803467415874 1.1135e-09 deg/d
Q 2.689687625477296 6.9893e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1668  
   data-arc span      17661 days (48.35 yr)  
   first obs. used      1972-10-05  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49089  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:46:06  

Additional Information
 Earth MOID = .876261 au 
 Jupiter MOID = 2.78175 au 
 T_jup = 3.577 
[ 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 15.19   n/a E2021B10  
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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