ISS Live Tracker and Look-Up Alert

How it works

This LoT Notebook polls the free wheretheiss.at API every 10 seconds, publishes live ISS position data, and checks whether the station enters a configurable latitude/longitude box. On Coreflux LoT, the flow stays self-starting after deploy and keeps running through restarts, with a rising-edge look_up alert when the ISS passes overhead.

Key features

• REST API polling: Fetches ISS data from https://api.wheretheiss.at with no key.
• Live telemetry topics: Publishes latitude, longitude, altitude, velocity, and visibility.
• Pass detection: Compares position against configurable lat_min, lat_max, lon_min, and lon_max topics.
• Edge alerting: Emits look_up only on the 0 → 1 overhead transition.
• Status rollups: Publishes collapsed IssPosition and IssStatus model outputs.
• Self-starting clock: Uses a 10-second action to bootstrap polling automatically.

Prerequisites

• Coreflux broker with REST_API route support
• Internet egress to wheretheiss.at
• Optional: MQTT/topic access to override the home box edges

Setup