The Astronomer's Proposal Tool (APT) is a GUI-based software package proposers use to write, validate, and submit proposals for the James Webb Space Telescope. (A separate branch of the tool is used for proposing to the Hubble Space Telescope as well.) This article provides a high level view into the documentation available to support users in learning and using the APT software.
The JWST Astronomer's Proposal Tool is under development and subject to updates. Current documentation is based on APT v25.4, and may be revised with future APT releases.
The information below provides quick access to a range of articles on many aspects of APT. In turn, many of these articles link to more detailed descriptions or to instrument-specific information that will support proposers in understanding JWST and proposing for observation time.
APT has several key sections:
- The Form Editor provides the main interface for viewing and entering proposal contents.
- The Visit Planner is used for checking the schedulability of proposed observations. This tool also contains diagnostic information to help you diagnose scheduling problems when they occur.
- Aladin is an interactive sky viewing tool; a simplified version Aladin is integrated into APT. It is used to help observers visualize their observations, by projecting their exposure specifications on a range of selectable image data.
- The Submission button is for submitting completed proposals for consideration.
There are additional features in APT, as shown in the tool's top tool bar or the APT pull down menus. An JWST APT Help Features article describes several different ways of getting assistance with APT-related tasks. There are also a number of APT training materials and videos to help you learn to use this important tool.
More about APT for JWST
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