SLIM is developed at the Space Telescope European Coordinating Facility

Space Telescope European Coordinating Facility

right|The Space Telescope - European Coordinating Facility is an institution which provides a number of support and service functions primarily for European observers of the NASA/ESA Hubble Space Telescope...

 (ST-ECF) and is a slitless spectroscopy

Slitless spectroscopy

Slitless Spectroscopy is astronomical spectroscopy done without a small slit to allow only light from a small region to be diffracted. It works best in sparsely populated fields, as it spreads each point source out into its spectrum, and crowded fields with be too confused to be useful...

 simulator programme created to produce simulated ACS grism

Grism

A grism is a combination of a prism and grating arranged so that light at a chosen central wavelength passes straight through. The advantage of this arrangement is that one and the same camera can be used both for imaging and spectroscopy without having to be moved...

 and prism images. It is written in Python programming language

Python (programming language)

Python is a general-purpose, high-level programming language whose design philosophy emphasizes code readability. Python claims to "[combine] remarkable power with very clear syntax", and its standard library is large and comprehensive...

 and covers all spectral elements available in the Advanced Camera for Surveys

Advanced Camera for Surveys

The Advanced Camera for Surveys is a third generation axial instrument aboard the Hubble Space Telescope . The initial design and scientific capabilities of ACS were defined by a team based at Johns Hopkins University. ACS was assembled and tested extensively at Ball Aerospace & Technologies Corp...

 (ACS) installed on-board the Hubble Space Telescope

Hubble Space Telescope

The Hubble Space Telescope is a space telescope that was carried into orbit by a Space Shuttle in 1990 and remains in operation. A 2.4 meter aperture telescope in low Earth orbit, Hubble's four main instruments observe in the near ultraviolet, visible, and near infrared...

(HST). It was created to generate data that is both geometrically and photometrically realistic and is appropriate to the slitless spectroscopic modes of the ACS.