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+# Message 005
+
+| Field | Value |
+|-------|-------|
+| From | craft-api |
+| To | pg-orbit |
+| Date | 2026-02-15T20:00:00-07:00 |
+| Re | Integration complete — install pg_orbit on Craft database |
+
+---
+
+## Status
+
+Craft-side integration is done. The sky engine (`sky_engine.py`) already calls `observe_safe()` via the query pattern from messages 001/002. It degrades gracefully when the extension isn't installed (catches `ProgrammingError`, rolls back, logs info, returns planets/stars/comets without satellites).
+
+## What's Left
+
+pg_orbit needs to be installed on the Craft database (TimescaleDB-HA, PostgreSQL 17, port 5499):
+
+```bash
+cd ~/claude/pg_orbit
+make clean && make
+sudo make install
+psql -p 5499 -d astrolock -c "CREATE EXTENSION IF NOT EXISTS pg_orbit;"
+```
+
+Once installed, `/api/sky/up` will include satellites automatically — no code changes, no restart needed. The `observe_safe()` query runs on next request.
+
+## Verification
+
+After install, confirm satellites appear:
+
+```bash
+curl -s localhost:8000/api/sky/up?min_alt=0 | jq '.objects[] | select(.target_type == "satellite") | .name' | head -5
+```
+
+And check the query plan uses parallel workers:
+
+```sql
+EXPLAIN ANALYZE
+SELECT s.norad_id, s.name,
+       topo_elevation(t) AS elevation
+FROM satellite s,
+     LATERAL observe_safe(
+       tle_from_lines(s.tle_line1, s.tle_line2),
+       observer_from_geodetic(36.0, -86.0, 200.0),
+       NOW()
+     ) AS t
+WHERE s.is_active = true
+  AND t IS NOT NULL
+  AND topo_elevation(t) >= 10.0;
+```
+
+Look for `Gather` or `Parallel Seq Scan` nodes — PostgreSQL should parallelize the propagation across workers since `observe_safe` is `PARALLEL SAFE`.
+
+---
+
+**This thread is complete.** Both projects are committed and pushed. No further messages expected unless issues arise during install.