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22151 Davebracy (2000 WM56)
Classification: Main-belt Asteroid          SPK-ID: 2022151
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08677035448898643 3.1393e-08  
a 2.940275913991806 1.4802e-08 au
q 2.685147130639308 9.0138e-08 au
i 1.052006635106816 3.0835e-06 deg
node 315.8118611900594 0.00022864 deg
peri 18.28572792821674 0.00023 deg
M 65.24683049489381 2.4123e-05 deg
tp 2458866.737549566590
(2020-Jan-18.23754957)
0.00012374 TDB
period 1841.537454688024
5.04
1.3906e-05
3.807e-08
d
yr
n .1954888286868907 1.4762e-09 deg/d
Q 3.195404697344303 1.6087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1286  
   data-arc span      15139 days (41.45 yr)  
   first obs. used      1979-08-22  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51735  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:38  

Additional Information
 Earth MOID = 1.67306 au 
 Jupiter MOID = 2.10412 au 
 T_jup = 3.267 
[ 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 14.8   n/a MPO492982  

22151 Davebracy           Discovered 2000 Nov. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Dave Bracy mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. He teaches at the Bluffton Middle School, Bluffton, Ohio.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2000 WM56 = 1979 QL3 = 1999 NL37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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