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22266 (1981 EQ11)
Classification: Main-belt Asteroid          SPK-ID: 2022266
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1250323397116374 3.3699e-08  
a 2.260553563591718 8.0788e-09 au
q 1.977911262492366 7.6567e-08 au
i 4.430601721614223 3.7785e-06 deg
node 262.4264143364481 4.8374e-05 deg
peri 101.8394762363455 5.0778e-05 deg
M 62.67524574346109 1.6286e-05 deg
tp 2458984.370437349695
(2020-May-14.87043735)
5.5788e-05 TDB
period 1241.425408566942
3.40
6.655e-06
1.822e-08
d
yr
n .2899892313430022 1.5546e-09 deg/d
Q 2.543195864691071 9.089e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      14624 days (40.04 yr)  
   first obs. used      1981-02-02  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52302  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:58  

Additional Information
 Earth MOID = .980003 au 
 Jupiter MOID = 2.91741 au 
 T_jup = 3.606 
[ 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 15.5   n/a MPO384945  

22266 (1981 EQ11)          Discovered 1981-Mar-07 by Bus, S. J. at Siding Spring
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EQ11 = 1999 RB46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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