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The Planck Function (convert from temperature and wavelength to spectral radiance)
Instructions:      Step 1: Enter the temperature (K) and center wavelngth (um).
                          Step 2: Click in the spectral radiance field.
Temperature T(K)
Center Wavelength um
Spectral Radiance (W/m2-sr-um)

The Planck Function (convert from temperature and wavenumber to spectral radiance)
Instructions:      Step 1: Enter the temperature (K) and center wavenumber.
                          Step 2: Click in the spectral radiance field.
Temperature T(K)
Center Wavenumber cm-1
Spectral Radiance (mW/m2-sr-cm-1)

The Inverse Planck Function (convert from spectral radiance and wavelength to temperature)
Instructions:    Step 1: Enter the spectral radiance and center wavelength.
                        Step 2: Click in the temperature field.
Spectral Radiance (W/m2-sr-um) 
Center Wavelength um
Temperature (K) 

The Inverse Planck Function (convert from spectral radiance and wavenumber to temperature)
Instructions:    Step 1: Enter the spectral radiance and center wavenumber.
                        Step 2: Click in the temperature field.
Spectral Radiance (mW/m2-sr-cm-1) 
Center Wavenumber cm-1
Temperature (K) 

The NEDT Function (convert from NEDL with wavelength, and temperature inputs to NEDT)
Instructions:    Step 1: Enter the NEDL, wavelength and temperature.
                        Step 2: Click in the NEDT field.
NEDL (W/m2-sr-um) 
Temperature k
Center Wavelength um
NEDT (K) 

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The NEDL Function (convert from NEDT with wavelength, and temperature inputs to NEDL)
Instructions:    Step 1: Enter the NEDT, wavelength and temperature.
                        Step 2: Click in the NEDL field.
NEDT (k) 
Temperature k
Center Wavelength um
NEDL (W/m2-sr-um) 

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Author: Changyong Cao and Xi Shao