Chapter 4:
Cycle 16 Scientific Instruments

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In this chapter...

4.1 Overview / 24 4.2 Advanced Camera for Surveys (ACS) / 29 4.3 Fine Guidance Sensor (FGS1R) / 30 4.4 Near Infrared Camera and Multi-Object Spectrometer (NICMOS) / 31 4.5 Wide Field and Planetary Camera 2 (WFPC2) / 33

This chapter provides a basic description of the science instruments (SIs) that will be offered for use in Cycle 16. For detailed information on all the SIs please refer to the Instrument Handbooks available from the HST Instruments Web page. Appendix B gives brief descriptions of previous HST instruments, which may be of interest for Archival Research.

STIS suspended operations on 3 August 2004, and is not available for scheduling in Cycle 16. If SM4 is authorized by the NASA administra- tor, an attempt to refurbish STIS will be made on a best effort basis. If successful, STIS will become operational starting in Cycle 17.