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22148 Francislee (2000 WH46)
Classification: Main-belt Asteroid          SPK-ID: 2022148
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08340833428017835 3.3353e-08  
a 2.716645235940264 1.3535e-08 au
q 2.490054381980304 9.2604e-08 au
i 6.339385031771817 4.4881e-06 deg
node 214.7455345199577 3.7624e-05 deg
peri 65.41279251380224 4.8862e-05 deg
M 309.0073252534037 3.3062e-05 deg
tp 2459432.161098300044
(2021-Aug-05.66109830)
0.00015066 TDB
period 1635.489720875696
4.48
1.2223e-05
3.346e-08
d
yr
n .2201175558640894 1.645e-09 deg/d
Q 2.943236089900223 1.4664e-08 au
  Orbit Determination Parameters
   # obs. used (total)      923  
   data-arc span      10402 days (28.48 yr)  
   first obs. used      1991-11-29  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51199  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:38  

Additional Information
 Earth MOID = 1.48025 au 
 Jupiter MOID = 2.1471 au 
 T_jup = 3.347 
[ 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 14.98   n/a E2021B10  
rotation period rot_per 8.326 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

22148 Francislee           Discovered 2000 Nov. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Francis Lee mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. He teaches at the Miller Junior High School, San Jose, California.
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

Alternate Designations
 2000 WH46 = 1998 HC133 = 1999 RT246 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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