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gcn.nasa.gov

The premium Open Source alternative to Custom proprietary alert systems

🎯 Best for:Institutions requiring real-time alerts for multimessenger astronomy.
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What is gcn.nasa.gov?

Replaces legacy GCN/TAN systems with a modern Kafka-based distribution network. It enables low-latency dissemination of transient events like GRBs and gravitational waves.

Tech Stack
TypeScriptPhysics & Astronomy

Why gcn.nasa.gov?

  • • Low latency
  • • Kafka-based
  • • Modern API

Limitations

  • • Infrastructure heavy
  • • Complex setup
  • • NASA credential requirements
3/5/2026
Last Update
54
Forks
105
Issues
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License
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Competitor Cost
-$1,440
/ year (est. based on Custom proprietary alert systems)
Self-Hosted
$0
/ year
Team Size10 Users
150+
Launch Detailed Calculator
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