Ultimate observatory protection
Lunatico Last Line of Defence
It will take control in case of need.LLLOD runs silently on your observatory PC. It monitors the roof, the mount, the internet connection, your automation software and the weather — and if anything becomes unsafe, it closes the observatory. Automatically. Reliably. Every time.
LLLOD checks five critical areas of your observatory, periodically and automatically, so nothing slips through unnoticed.
Monitors via ASCOM. If the roof is open when it shouldn't be — or if it fails to close when commanded — LLLOD acts.
Checks that the PC can reach the internet. Loss of connectivity can leave your observatory blind to remote commands.
Monitors that your imaging or sequencing program is still running. A silent crash leaves your dome open with no one in control.
Reads the ASCOM Safety Monitor interface. If the connected weather sensor (CloudWatcher, Hydreon, etc.) reports unsafe, LLLOD responds.
Monitors via ASCOM telescope. Checks that the mount isn't pointing dangerously downward — catching meridian flip or slew failures.
LLLOD waits a configurable number of seconds to confirm the unsafe condition isn't transient, then takes control in an orderly sequence:
Each step is configurable. You choose what LLLOD does and in what order.
"LLLOD is extremely simple. It just does a simple job, but it does it solidly."— Lunaticoastro, product description
LLLOD is written in Lua and designed to stay out of your way. It runs hidden in the background and only acts when it has to.
LLLOD and GNS are separate, independent products — but they're designed to work as a pair. LLLOD handles the physical response; GNS handles the human notification.
The combination means that if LLLOD successfully closes your observatory, GNS confirms it. And if LLLOD fails — can't close the dome, can't park the mount — GNS raises the alarm immediately so you can intervene.
Learn about GNS →LLLOD's interface shows exactly what it's monitoring and whether everything is OK — nothing more, nothing less.
Free to download and use. If it protects your observatory night after night, consider a small donation to support development.
Windows installer (setup.exe). Free, no registration required. Up To You Ware.
Download →Complete setup guide, configuration reference and troubleshooting documentation.
Read manual →Broader guide to automating and protecting your observatory — recommended reading alongside LLLOD.
Read guide →Pair LLLOD with the GNS smartphone app for complete protection: automatic closure + instant phone alerts.
See GNS →