General Coordinates Network (GCN): NASA’s Time-Domain and Multimessenger Astronomy Alert System
GCN is a public collaboration platform run by NASA for the astronomy research community to share alerts and rapid communications about high-energy, multimessenger, and transient phenomena. GCN distributes alerts between space- and ground-based observatories, physics experiments, and thousands of astronomers around the world. With new transient instruments from across the electromagnetic spectrum and multimessenger facilities, this coordination effort is more important and complex than ever. GCN is built on modern, open-source, reliable, and secure alert distribution technologies, and deployed in the cloud. In this talk, I will present the status of the migration from the legacy GCN Classic system to the new GCN, recent and upcoming features, the GCN JSON Notices schema and relationship to VOEvent, and the status of onboarding new observatories. | GCN_IVOA_2024.pdf | Roberto de Pietri (Universita di Parma) | 15 min (remote) | The LVK Alert System and the use of IVOA standard | <--StartFragment--> I will present the structure of the GW alerts and how they are distributed: GCN-classic, GCN JSON Notices, and SCiMMA (Avro encoded) Kafka stream. I will try to discuss the prospect for the future observation campaign O5 and the discussion that it is starting on the usage of IVOA standards and/or proprietary formats for alert distribution.<--EndFragment--> | | Janet Evans (CXC) | 5 min | HEIG overview | Quick overview of the activities of the HEIG working group and 'ask' to the IVOA Exec to welcome a new interest group. | pdf |
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