Chapter 1:
General Information

1.1 About this Document

1.2 New and Important Features of Cycle 21

What’s New for Cycle 21

Important Features Carried Over From the Previous Cycle

1.3 General Guidelines for Proposal Preparation

1.4 Resources, Documentation and Tools

1.4.1 Cycle 21 Announcement Webpage

1.4.2 Phase I “Roadmap”

1.4.3 HST Primer

1.4.4 Instrument Handbooks

1.4.5 The Astronomer’s Proposal Tool (APT)

1.4.6 Exposure Time Calculators (ETCs)

1.4.7 HST Data Archive

1.4.8 Duplication checking

1.5 STScI Help Desk

1.6 Organization of this Document

1.6.1 Policies, Procedures and General Information

1.6.2 Preparing and Submitting Your Proposal

1.6.3 Information Pertaining to Accepted Proposals

1.6.4 Appendices