Nearly all observers should use the MULTIACCUM mode.
Introduction / 119
Read Times and Dark Current Calibration in ACCUM Mode / 130
Acquisition Mode / 130
NICMOS Science Data / 132
The NICMOS flight software supports several detector readout modes which take advantage of the non-destructive read capabilities of the detectors to yield the optimum signal to noise for your science observations. These are described in detail in this chapter. In describing these we introduce the nomenclature used to command each of the modes in the Phase II proposal instructions. Finally we give recommendations about when to use of each of these readout modes.
Nearly all observers should use the MULTIACCUM mode.