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22162 Leslijohnson (2000 WS123)
Classification: Main-belt Asteroid          SPK-ID: 2022162
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1817214848650273 5.4271e-08  
a 2.546132459769767 1.2211e-08 au
q 2.083445488517361 1.4109e-07 au
i 4.237991338260699 4.735e-06 deg
node 83.48050722466948 4.7336e-05 deg
peri 294.5053038738133 4.9474e-05 deg
M 34.13518079372433 1.2872e-05 deg
tp 2459059.791729852910
(2020-Jul-29.29172985)
5.3473e-05 TDB
period 1483.952218066621
4.06
1.0675e-05
2.923e-08
d
yr
n .2425954121818214 1.7451e-09 deg/d
Q 3.008819431022173 1.443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      10808 days (29.59 yr)  
   first obs. used      1991-08-07  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47219  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:46  

Additional Information
 Earth MOID = 1.08848 au 
 Jupiter MOID = 2.4592 au 
 T_jup = 3.416 
[ 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 14.5   n/a MPO435906  

22162 Leslijohnson           Discovered 2000 Nov. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Leslie Johnson mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Dunbar Middle School, Fort Worth, Texas.
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 WS123 = 1991 PD29 = 1998 HM58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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