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19936 (1981 EZ12)
Classification: Main-belt Asteroid          SPK-ID: 2019936
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208564238291435 3.4473e-08  
a 2.25516633162151 6.828e-09 au
q 1.982614993641846 7.7296e-08 au
i 4.524917455639478 4.0198e-06 deg
node 278.0201860829952 4.5776e-05 deg
peri 134.01545224 4.8887e-05 deg
M 22.88840856209658 1.5784e-05 deg
tp 2459121.853501467506
(2020-Sep-29.35350147)
5.4251e-05 TDB
period 1236.990304279348
3.39
5.6178e-06
1.538e-08
d
yr
n .2910289585573838 1.3217e-09 deg/d
Q 2.527717669601174 7.6532e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1458  
   data-arc span      14620 days (40.03 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .493  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:09:43  

Additional Information
 Earth MOID = .996094 au 
 Jupiter MOID = 2.78356 au 
 T_jup = 3.610 
[ 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 14.9   n/a MPO337426  

19936 (1981 EZ12)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1981 EZ12 = 1998 FU125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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