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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101013645848475 8.8899e-08  
a 2.426691118122162 2.0133e-08 AU
q 2.159509114590983 2.2465e-07 AU
i 8.296956807762589 1.0508e-05 deg
node 351.8883380129844 4.6344e-05 deg
peri 131.3965274910898 6.319e-05 deg
M 4.980722339505672 4.2762e-05 deg
tp 2456981.396629056656
(2014-Nov-19.89662906)
0.00016399 JED
period 1380.766296698741
3.78
1.7183e-05
4.704e-08
d
yr
n .260724788011353 3.2447e-09 deg/d
Q 2.693873121653342 2.235e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      12345 days (33.80 yr)  
   first obs. used      1981-03-06  
   last obs. used      2014-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54002  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 03:08:43  

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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