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22158 Chee (2000 WG101)
Classification: Main-belt Asteroid          SPK-ID: 2022158
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129117987735659 4.019e-08  
a 2.525574222154981 9.6833e-09 au
q 2.199477160713278 1.0349e-07 au
i 9.302269446451024 5.0088e-06 deg
node 89.79039544805998 2.0937e-05 deg
peri 328.9107620089219 2.8426e-05 deg
M 33.01015160042546 1.8638e-05 deg
tp 2459066.073884443843
(2020-Aug-04.57388444)
7.6014e-05 TDB
period 1466.015733159878
4.01
8.4313e-06
2.308e-08
d
yr
n .2455635310434556 1.4123e-09 deg/d
Q 2.851671283596684 1.0934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1500  
   data-arc span      9249 days (25.32 yr)  
   first obs. used      1995-11-17  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48695  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:44  

Additional Information
 Earth MOID = 1.2175 au 
 Jupiter MOID = 2.4551 au 
 T_jup = 3.424 
[ 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 14.64   n/a E2021B10  
diameter diameter 3.505 km 0.848 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.250   0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22158 Chee           Discovered 2000 Nov. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Carmelita Chee mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Pinon Unified School District #4 Middle School, Pinon, Arizona.
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 WG101 = 1998 HQ147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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