  This work describes Live Monitor, the monitoring subsystem of SDDS - an
automated system for space experiment data processing, storage, and
distribution created at SINP MSU. Live Monitor allows operators and developers
of satellite data centers to identify errors occurred in data processing
quickly and to prevent further consequences caused by the errors. All
activities of the whole data processing cycle are illustrated via a web
interface in real-time. Notification messages are delivered to responsible
people via emails and Telegram messenger service. The flexible monitoring
mechanism implemented in Live Monitor allows us to dynamically change and
control events being shown on the web interface on our demands. Physicists,
whose space weather analysis models are functioning upon satellite data
provided by SDDS, can use the developed RESTful API to monitor their own events
and deliver customized notification messages by their needs.
