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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04035772938182358 5.65e-08  
a 2.777047972557176 2.9647e-08 au
q 2.664972622000371 1.6261e-07 au
i 5.131057304644097 6.1062e-06 deg
node 292.2254553048421 7.7721e-05 deg
peri 355.8097558793758 0.00012112 deg
M 60.53858509243431 9.1922e-05 deg
tp 2458716.248172400193
(2019-Aug-20.74817240)
0.0004321 TDB
period 1690.337786713801
4.63
2.7068e-05
7.411e-08
d
yr
n .2129751833211271 3.4105e-09 deg/d
Q 2.88912332311398 3.0843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      13559 days (37.12 yr)  
   first obs. used      1981-03-01  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58681  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:31:58  

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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