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26800 (1981 EK1)
Classification: Main-belt Asteroid          SPK-ID: 2026800
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101013319563357 9.2668e-08  
a 2.426691130558861 2.283e-08 AU
q 2.159509204837704 2.3623e-07 AU
i 8.296955842172505 1.0954e-05 deg
node 351.8883352767635 4.7308e-05 deg
peri 131.3965422799276 6.4829e-05 deg
M 4.980702289250203 4.6619e-05 deg
tp 2456981.396705811792
(2014-Nov-19.89670581)
0.00017873 JED
period 1380.766307313302
3.78
1.9485e-05
5.335e-08
d
yr
n .2607247860070461 3.6793e-09 deg/d
Q 2.693873056280018 2.5344e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      562  
   data-arc span      12286 days (33.64 yr)  
   first obs. used      1981-03-06  
   last obs. used      2014-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53639  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:49:50  

Additional Information
 Earth MOID = 1.18446 AU 
 T_jup = 3.488 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO279794  

26800 (1981 EK1)          Discovered 1981-Mar-06 by Debehogne, H., DeSanctis, G. at La Silla (809)
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EK1 = 1998 SO100 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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