Technical Companion: 0.30 m Pixel⁻¹ OHRC Stereo DEM Generation Workflow for the Chandrayaan-3 Landing Site

This document provides technical workflow documentation for generating a 0.30 m pixel⁻¹ digital elevation model (DEM) from Chandrayaan-2 Orbiter High Resolution Camera (OHRC) stereo imagery at the Chandrayaan-3 Vikram landing site. It details stereo preprocessing, camera model configuration, feature matching, bundle adjustment, and DEM reconstruction steps implemented using publicly available tools (ISIS, the Ames Stereo Pipeline, and ALE). This archive documents generation of the 0.30 m grid DEM prior to geodetic alignment and external validation. Quantitative geodetic correction, alignment to LOLA measurements, and vertical validation statistics are presented separately in the associated peer-reviewed manuscript. The purpose of this companion document is to support reproducibility and provide detailed configuration references for independent OHRC stereo processing using publicly archived data.