base sys done. shift to vs code

db/schema.sql

@@ -0,0 +1,44 @@
+-- Enable extensions
+CREATE EXTENSION IF NOT EXISTS postgis;
+CREATE EXTENSION IF NOT EXISTS timescaledb;
+
+-- Main object catalog (replaces 'satellites')
+CREATE TABLE objects (
+    id SERIAL PRIMARY KEY,
+    name TEXT NOT NULL,
+    norad_id INT UNIQUE NOT NULL,
+    intl_designator TEXT,
+    launch_date DATE,
+    orbit_type TEXT
+);
+
+CREATE TABLE orbits (
+    object_id INT REFERENCES objects(id),
+    ts TIMESTAMPTZ NOT NULL,
+    position GEOGRAPHY(POINT, 4326),
+    altitude_km DOUBLE PRECISION,
+    velocity_kms DOUBLE PRECISION,
+    PRIMARY KEY (object_id, ts)
+);
+SELECT create_hypertable('orbits', 'ts', if_not_exists => TRUE);
+
+-- Conjunction Data Messages / alerts
+CREATE TABLE conjunctions (
+    id SERIAL PRIMARY KEY,
+    primary_object INT REFERENCES objects(id),
+    secondary_object INT,
+    tca TIMESTAMPTZ,  -- Time of Closest Approach
+    miss_distance_km DOUBLE PRECISION,
+    risk_level TEXT,
+    poc DOUBLE PRECISION  -- Probability of Collision
+);
+
+-- Re-entry prediction windows and footprints
+CREATE TABLE reentry_predictions (
+    id SERIAL PRIMARY KEY,
+    object_id INT REFERENCES objects(id),
+    window_start TIMESTAMPTZ,
+    window_end TIMESTAMPTZ,
+    footprint GEOGRAPHY(POLYGON, 4326),
+    notes TEXT
+);