What is APT?

The Astronomer's Proposal Tool (APT) is used to write, validate, and submit proposals for the Hubble Space Telescope and the James Webb Space Telescope.

Download and Installation Instructions

Current Release: 2020.2.1

Released: June 1, 2020

This upgrade is required for people working on HST Phase II Programs. Read more

This upgrade is not needed for JWST Cycle 1 Proposers.

Previous Release Information

Documentation, Training, and Support

Documentation, Training, and Support

Links to user documentation, training materials, and APT support are provided in the sections below based on the type of proposal being submitted.