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20081 Occhialini (1994 EE3)
Classification: Main-belt Asteroid          SPK-ID: 2020081
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0885824413953403 2.9627e-08  
a 2.453977705407172 9.1099e-09 au
q 2.236598369132469 7.4634e-08 au
i 7.640431177261081 3.0494e-06 deg
node 135.6214374688205 2.8234e-05 deg
peri 6.523807259374358 3.645e-05 deg
M 336.3239029146383 2.2679e-05 deg
tp 2459092.844696327048
(2020-Aug-31.34469633)
8.8507e-05 TDB
period 1404.120390192657
3.84
7.8187e-06
2.141e-08
d
yr
n .2563882716286209 1.4277e-09 deg/d
Q 2.671357041681874 9.9168e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1714  
   data-arc span      13152 days (36.01 yr)  
   first obs. used      1984-11-13  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47434  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 20:37:17  

Additional Information
 Earth MOID = 1.24962 au 
 Jupiter MOID = 2.33489 au 
 T_jup = 3.476 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457140.5 (2015-Apr-28.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0879791210507242 2.987e-08  
q 2.238078743187194 7.5218e-08 au
tp 2457690.797108708833
(2016-Oct-29.29710871)
8.8343e-05 TDB
node 135.6765118084664 2.8222e-05 deg
peri 6.954378612582843 3.6473e-05 deg
i 7.641720530330566 3.0505e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1714  
   data-arc span      13152 days (36.01 yr)  
   first obs. used      1984-11-13  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47434  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 20:37:17  

Additional Information
 Jupiter MOID = 2.33489 au 
 T_jup = 3.476 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.922173790551421E-16 -2.233466404768284E-15 8.548507015288147E-13 7.871915865224703E-15 2.469975511120105E-13 1.813118933862135E-16
q -2.233466404768284E-15 5.657740354012331E-15 -2.094087022147993E-12 -1.839751415427269E-14 -6.144939336891132E-13 -2.328562820209958E-16
tp 8.548507015288147E-13 -2.094087022147993E-12 7.804466273495234E-9 3.728363706959999E-11 2.05518889525994E-9 6.03283391870498E-12
node 7.871915865224703E-15 -1.839751415427269E-14 3.728363706959999E-11 7.964617312960195E-10 -7.791859428017723E-10 1.408509436209646E-11
peri 2.469975511120105E-13 -6.144939336891132E-13 2.05518889525994E-9 -7.791859428017723E-10 1.330267120167687E-9 -1.236980931177931E-11
i 1.813118933862135E-16 -2.328562820209958E-16 6.03283391870498E-12 1.408509436209646E-11 -1.236980931177931E-11 9.305431448778963E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO416922  

20081 Occhialini           Discovered 1994 Mar. 12 by V. Goretti and M. Tombelli at Cima Ekar.
Giuseppe Occhialini (b. 1907) is a distinguished Italian physicist. He collaborated with P. M. S. Blackett at the Cavendish Laboratory of Cambridge on very important research work in cosmic radiation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1994 EE3 = 1998 HA121 = 1999 RZ129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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