Astronomer's Proposal Tool

APT 2026.3.1 Beta (Tue Apr 14 2026)

Available Installers

	Apple Silicon	11 (Big Sur) +	macOS Apple Silicon Download	macOS Apple Silicon Instructions
	Intel	10.12 (Sierra) +	macOS Intel Download	macOS Intel Instructions
		RHEL 7 +, Ubuntu 18.04 +	Linux Download	Linux Instructions
		Windows 8.1 +	Windows Download	Windows Instructions

macOS Apple Silicon Instructions:

Instructions

• After downloading, double-click APT_ARM.pkg to start the installation.

Notes

More details on supported Mac systems and installation troubleshooting.

SHA-256: 003363ab0bcded697254d703e064f53337f2f1aa51e54a2abec0f4b188cf6df0

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macOS Intel Instructions:

Instructions

• After downloading, double-click APT_Intel.pkg to start the installation.

Notes

More details on supported Mac systems and installation troubleshooting.

SHA-256: 337efe98a712b98a9174bc883e8cffcc81492df9401f4fa64cb810ba062341a8

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Linux Instructions:

Instructions

• After downloading open a shell and cd to the directory where you downloaded the installer.
• To install type:  sh install-linux-apt.sh

Notes

More details on supported Linux systems and installation troubleshooting.

SHA-256: 5c0503bc5658f5835de7782ffb1676958eab264693bb0a744cdf3a19cee6096a

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Windows Instructions:

Instructions

• After downloading, double-click install-windows-apt.exe to start the installer.
• (Note that you may get a benign but concerning pop up that says: "The publisher could not be verified.")

Important


1. We recommend installing this software into the default location (which is a folder within the user's home folder).
2. In situations where APT must be installed into a common area (such as C:\Program Files), you may need to use an actual Administrator account and not an account that has Administrator privileges or some institution specific configuration of heightened privileges.
3. If you choose to install to this location, please be sure to specify a directory within Program Files e.g. C:\Program Files\APT_26.0.

More details on supported Windows systems and installation troubleshooting.

SHA-256: 847099e56c74d87e29cf61555e5e79f808681e0c645c2a8d8b323bef4ce4a001

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Changeset: 90e90a950338409d34dc51f47b3353303d9ef1d6. Build time: 14-Apr-2026 04:57 PM. Built by: sstadmin on runner-nzkxj0p5x-project-456-concurrent-3-yrn4xoya. JWST PRD version PRDAPTSOC-073-002. Roman PRD version PRDDEVRSOC-002