New Exposure Time Calculators (ETCs) for the LT have been installed on the website at the Exposure Time Calculator page.
Between the two ETCs (one for imaging, the other for spectroscopy), existing and prospective users can answer questions on what exposure times are necessary to achieve a required signal to noise ratio. Users can select any of the many instruments mounted on the LT and adjust their settings, as well as the effect of atmospheric turbulence ("seeing") and background sky brightness.
The original idea to upgrade the ETCs' usability with Google Charts was Dr Marco Lam's, who is Scientific Software Developer for the LT. The new ETCs were developed by Lam and Dr Doug Arnold, DevOps Engineer for the New Robotic Telescope.
Feel free to use the ETCs for yourself and discover how the LT can obtain images and spectra of your target: