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Hubble Space Telescope
NICMOS Expsoure Time Calculators (ETCs)

NICMOS ETC is no longer available.

The NICMOS ETC is no longer available for new calculations. Given the fact that NICMOS is not being offered for use in the current proposal cycles, and due to the substantial maintenance and development costs in a constrained budgetary environment, the decision was taken to discontinue support for the NICMOS ETC.

Users can still retrieve NICMOS ETC results from Cycles 17 and 18 by contacting the STScI Help Desk at

Known Issues with previous versions of ETC

For coronagraphic observers, please refer to this advisory note.

For problems or questions, please email