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

Trouble installing APT? Please see Troubleshooting Tips at the bottom of each of these platform specific Installation instructions.

Current Release: 2024.5.2

APT 2024.5.2 was released on August 23, 2024 and is a patch build to fix a Windows specific bug in APT 2024.5.1 that affected JWST only.

APT 2024.5.1 was released on August 22, 2024 to support JWST work. (Can be used for HST as well.)

Current and previous release summary

Documentation, Training, and Support