The STScI Exposure Time Calculators

Rosa Diaz (Space Telescope Science Institute), Elizabeth A. Barker (STScI), Victoria G. Laidler(CSC, STScI)′ Chris Hanley (STScI), Megan
Sosey (STScI), Ivo Busko (STScI), Perry Greenfield(STScI), Mark Sienkiewicz (STScI).


The Exposure Time Calculator (ETC) is a tool to calculate either
the signal-to-noise ratio or the exposure time of HST and JWST
observations. With a continuously evolving observatory like
HST, maintaining this tool to support all available modes, which
use different types of detectors and different instruments, is a
challenge. The calibration of modes is ongoing, which results in instrument data updates, modification and enhancements to the
underlying code, and integration of new modes, all while maintaining stability, robustness, and accuracy. In this poster
we describe how this kind of tool is essential in the greater
scheme of preparing scientifically successful observations.

Paper ID: P033

Poster Instructions

Latest News

Quick links

ADASS XXI Conference Poster

Download the Official Conference Flyer:

JPG:   A4  A3

PDF (with printer marks):

8.5in x 11in  11in x 17in  A4  A3  A2