Development and tests to take the initial demo release forward to be able to support the ngVLA antenna prototype commissioning 2024 and later ngVLA construction.

Features will include adding support for ngVLA antenna geometry and panel layouts, and testing the panel adjustment sofware using primary beam models generated from ngVLA antenna simulations with/without known panel displacements.

Two additional features/tests required for ngVLA are a demonstration of end-to-end use on VLA data (part of the VLA support milesteone) and a demonstration of 5-point panel adjustment (part of the ALMA support milestone). The ngVLA project will use these results to determine whether the prototype antenna project in mid/late 2024 can or cannot use Astro-Hack.

The 'locit' feature is also included in this milestone, to solve for antenna positions from a multi-source observation. This will be required for ngVLA construction/commissioning, but (if needed), the AIPS version of LOCIT is expected to be usable as is for the antenna prototype commissioning.