Reference
Reference & Appendix
Lookup tables and background — chart types, email templates, interactions, privacy and data model, accuracy and sources.
Quick lookup material and the technical background behind ChartVault.
In this section
- All chart types at a glance — a table of the 14 types, what each answers, and how to open it.
- All email templates — the 14 base templates, the 8 offers, and the personalization that yields 100+ ready drafts.
- Interactions & shortcuts — click-to-focus, Esc to reset, Enlarge/Shrink, empty-space deselect.
- Privacy & data model — the local PGlite database, what's stored, the offline license, and why nothing leaves your computer.
- Accuracy & sources — the MIT astronomy-engine, first-principles Placidus, JPL-Horizons asteroids, Open-Meteo geocoding, and the permissive-licensing choices (no AGPL dependencies).
- The transit engine — how opportunities are computed (active clients, age-based returns, the −30…+180-day window).
- FAQ & troubleshooting — SmartScreen, geocoding older cards, offline behaviour, re-activating a license.
Detailed reference pages are being written.