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22146 Samaan (2000 WM23)
Classification: Main-belt Asteroid          SPK-ID: 2022146
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 .08509887031669683 4.3514e-08  
a 2.752827144402759 1.7469e-08 au
q 2.518564664236945 1.1604e-07 au
i 7.50793752401812 4.8077e-06 deg
node 163.7247707436066 3.3881e-05 deg
peri 150.8796264515657 4.9373e-05 deg
M 240.1038620890598 4.0155e-05 deg
tp 2459756.109333860477
(2022-Jun-25.60933386)
0.00018861 TDB
period 1668.271919970831
4.57
1.588e-05
4.348e-08
d
yr
n .2157921593539107 2.0541e-09 deg/d
Q 2.987089624568572 1.8956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      912  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1991-12-08  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:36  

Additional Information
 Earth MOID = 1.50634 au 
 Jupiter MOID = 2.26689 au 
 T_jup = 3.327 
[ 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 14.77   n/a E2021B10  
diameter diameter 6.462 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22146 Samaan           Discovered 2000 Nov. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Fida Samaan mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Hunter's Creek Middle School, Orlando, Florida.
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 ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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