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11691 Easterwood (1998 FO66)
Classification: Main-belt Asteroid          SPK-ID: 2011691
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1171412731620549 3.3526e-08  
a 2.273466917809323 5.8804e-09 au
q 2.007150108565326 7.7715e-08 au
i 1.68186867294467 3.5551e-06 deg
node 166.9887462467363 0.00011443 deg
peri 255.1139221441456 0.00011541 deg
M 344.4422337804585 1.4732e-05 deg
tp 2459254.609824557586
(2021-Feb-09.10982456)
5.1271e-05 TDB
period 1252.078001806172
3.43
4.8578e-06
1.33e-08
d
yr
n .2875220229735575 1.1155e-09 deg/d
Q 2.53978372705332 6.5693e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1743  
   data-arc span      12518 days (34.27 yr)  
   first obs. used      1986-11-28  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4935  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:54:46  

Additional Information
 Earth MOID = 1.02015 au 
 Jupiter MOID = 2.72622 au 
 T_jup = 3.601 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.13   n/a E2021B10  

11691 Easterwood           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jeffrey Michael Easterwood (b. 1985) is a finalist in the 2002 Intel International Science and Engineering Fair for his chemistry project. He attends the Rockdale High School, Rockdale, Texas, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 FO66 = 1986 WM6 = 1989 SF11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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