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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101014601811827 8.0189e-08  
a 2.426691083633222 1.5274e-08 AU
q 2.159508851916548 1.9871e-07 AU
i 8.296956503988488 9.8832e-06 deg
node 351.888336031666 4.0677e-05 deg
peri 131.3965003855984 5.8748e-05 deg
M 4.980773454450406 3.8613e-05 deg
tp 2456981.396433414490
(2014-Nov-19.89643341)
0.00014814 JED
period 1380.766267262877
3.78
1.3036e-05
3.569e-08
d
yr
n .260724793569614 2.4616e-09 deg/d
Q 2.693873315349896 1.6956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      668  
   data-arc span      12409 days (33.97 yr)  
   first obs. used      1981-03-06  
   last obs. used      2015-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51599  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:23:48  

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
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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