SOXS-ETC -- FDR-Version - 1.9 -- April 2023

INPUTS - current version working mode:

First select the Input flux Distribution, then fill the related fields in the Light gray boxes. Dark gray boxes can not be modified accordingly.

Science Object

Target Input Flux Distribution

Attention! If you want to download some template spectrum, which can be loaded as User-Defined Spectrum, press here


power-law - F(λ) ∝ λ index
User-defined Spectrum: Table [lambda, flux] in [A, erg/s/cm2/A]
Single emission line

Spatial distribution:

For explanation on how the extended source case is modeled press


Point source
Extended source

Blackbody Temperature [K]:

Power Law Index:


Use template spectrum:

Upload spectrum: Table [lambda, flux] in [A, erg/s/cm2/A]

mag: [Magnitudes are given per arcsec2 for extended sources]

Redshift :

Lambda [A]:

FWHM [A] (warning: min acceptable FWHM for UV-VIS = 0.32 A, for NIR = 0.63 A):

Flux [10^-16 erg/cm^2/s]:

Band m                   

Magsystem             

Sky Conditions

Moon - FLI [-]:

Airmass. [-]:

Precipitable Water Vapor [mm] -- (10 default value - 3.5 La Silla mean value):                            

Seeing [arcsec]:

Instrument set-up: Slit selection - Acquisition time - Detectors modes:

Slit size UV-VIS [arcsec]:                            

Slit size NIR [arcsec]:                            

Exposure time [sec], Single Exposure UV-VIS:


Number of Exposures [-], UV-VIS:


Detector Integration Time (DIT) [sec], Single Exposure NIR:

Number of DIT (NDIT) [-], NIR:

Number of Integrations (NINT) [-], NIR:

Binning X (spectral direction)                   

Binning Y (spatial direction)                   

Dark Current [e-/px/s] NIR:

Input for Calculation Database

Calculation-Plots: Wavelengths DataBase (Default DB is 15 SRE per order)    

Calculation-SNR: SNR per SRE (0) -- SNR per PIX (1)                   

RUN ETC:



Output selection: