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79104 (1981 EK33)
Classification: Main-belt Asteroid          SPK-ID: 2079104
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04035772449924301 5.6194e-08  
a 2.777047970637372 2.9255e-08 au
q 2.664972633717207 1.6146e-07 au
i 5.131057437932697 6.0799e-06 deg
node 292.225529926051 7.7481e-05 deg
peri 355.8096888059122 0.00012067 deg
M 60.53858387310218 9.1545e-05 deg
tp 2458716.248178420184
(2019-Aug-20.74817842)
0.00043032 TDB
period 1690.337784960977
4.63
2.6711e-05
7.313e-08
d
yr
n .2129751835419752 3.3654e-09 deg/d
Q 2.889123307557537 3.0436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      14395 days (39.41 yr)  
   first obs. used      1981-03-01  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57802  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:34:15  

Additional Information
 Earth MOID = 1.64865 au 
 Jupiter MOID = 2.19816 au 
 T_jup = 3.328 
[ 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 15.6   n/a MPO432340  

79104 (1981 EK33)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1981 EK33 = 2001 SA81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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