Enabling Mars Exploration with AHTSE
summary
AHTSE is a set of Apache HTTPD modules that serve huge planetary tiles on the fly: it reads 20 TB high‑res J2K stored on S3 via split MRFs, uses mod_convert to map 12‑bit → 8‑bit, then mod_retile + ecache to regrid to power‑of‑two tiles and cache on local SSD so CPU bursts for dome sessions stay low. A sparse index shrinks a ~300 GB index to ~8 GB, and the stack powers Esri’s Explore‑Mars 3D viewer in production.
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chapters (8)
- 0:00Introduction
- 1:11What is AHTSE
- 10:20Mars data sets overview
- 19:05Server configuration basics
- 21:33High-res image mosaic setup
- 30:18Performance and caching
- 35:17Module stack architecture
- 39:34Q&A
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