- Frequently Asked Questions
- Formula Book
- Database of efficiency profiles
- Historic ETC versions:
- SkyCalc Sky Model Calculator
- with advanced Almanac
- command-line interface skycalc_cli
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September 17nd, 2018: Version P103.2 released
MATISSE ETCs:
August 22nd, 2018: Version P103.1 released
SPHERE ETCs (IRDIS, IFS and ZIMPOL):
- Update of the sky conditions including seeing and coherence time.
August 14th, 2018: Version P103.0 released
Sky model in all ETCs:
- Scattered Moon light reduced by factor ≈ 0.83.
ESPRESSO ETC:
- Enabled 4UT mode.
- Adjusted blue detector parameters.
MUSE ETC:
- Updated Narrow Field Mode PSF model
SkyCalc:
- Added option to calculate the atmosphere temperature
and bolometric radiance.
- Sky background library for fixed PWV now depends on
time and season.
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