- Frequently Asked Questions
- Formula Book
- Database of efficiency profiles
- Previous ETC versions:
- SkyCalc Sky Model Calculator
- with advanced Almanac
- command-line interface skycalc_cli
January 10th, 2020
HAWK-I ETC: Corrected a bug which caused the
input values of airmass and moon phase to be
ignored, always using the default values instead.
December 19th, 2019
Corrected wrong IQ calculations in MUSE
WFM_AO mode and HAWKI in AO TTS free mode.