The Lazuli Integral Field Spectrograph ETC

IFS exposure-time calculator for stellar, SN Ia, and custom spectra across the selected wavelength range.

Mode

Requested SNR is an input. Exposure time and detector ramp settings are computed.

Source

Star name

Magnitude (AB)

Magnitude bandpass

SN Ia redshift (z)

SN Ia color (c)

SN Ia stretch (x1)

Custom spectrum (.csv, .txt, .dat)

Two columns with no header: wavelength in A and flux in FLAM. Comma-separated (e.g. 3500.23,1.366e-16) or whitespace-separated (e.g. 3500.23 1.366e-16) are both accepted. Lines beginning with # are ignored. Custom spectra are treated as absolute flux and used for this request only.

Background

Zodiacal background

Instrument

Spectrograph mode

Frame readout

Jitter (mas)

Requested SNR

Wavelength minimum (nm)

Wavelength maximum (nm)

Result

-

No results yet. Select inputs and click Calculate.

Configuration Summary

Source

star

Star

109vir

Flux scaling

24.0 AB

Bandpass

bessellv

Spectrograph

medium

Readout

fullframe

Wavelength range

800-1200 nm

Jitter

10 mas

ETC version

slicersim v0.32.0

Git commit

repository

Simulation description will appear here after Calculate.

Up-the-ramp visualizer

No backend readout yet.

The Bokeh prototype appears after Calculate returns exposure time and readout settings.

IFS layout

Current IFS layout output from the backend.

Plots

Plots not available. Click Calculate to generate plots.

Bokeh script length: 8587, div length: 101