ESO Exposure Time Calculators     

Documentation and Tools News and Notes
  • Frequently Asked Questions
  • Formula Book
  • Database of efficiency profiles
  • Retired ETCs
  • Historic ETC versions:
  • SkyCalc Sky Model Calculator
  Feb 29, 2016: Release for CfP P98 phase1
  • GRAVITY ETC: First public release
  • MUSE ETC: New seeing/IQ PSF model
  • SINFONI: Improved J-grating throughput
  • VISIR imaging ETC: Updated sensitivity model
  • CALVIN: Corrected observability criteria model
  • GIRAFFE, VIMOS IFU,MOS and EFOSC2 spectroscopy:
    Bug fix in the sky transmission model
  • SPHERE ETCs: Minor updates
ESO Exposure Time Calculators
Imaging Spectroscopy
La Silla EFOSC2  SUSI  WFI  SOFI  EFOSC2  HARPS  FEROS  SOFI 
Paranal UT1 NACO  FORS2  NACO  FORS2  KMOS 
Paranal UT2   UVES  UVES-FLAMES  GIRAFFE  X-SHOOTER 
Paranal UT3 VISIR   VIMOS 
SPHERE-IRDIS  SPHERE-ZIMPOL 
VISIR  SPHERE-IFS 
VIMOS-MOS  VIMOS-IFU 
Paranal UT4 HAWK-I  SINFONI  MUSE 
Paranal VISTA VIRCAM   
Paranal VST OmegaCAM   
E-ELT E-ELT  E-ELT 
VLTI GRAVITY  VisCalc  CalVin 

Send comments and questions to usd-help@eso.org