GRB Watcher is the app for viewing the GRB(Gamma Ray Burst). Start this app on your smartphone, you can see the occurrence of GRB. In addition, you can know the further details about GRB.

This project is solving the Transient Watch – Daily News on Active Neutron Stars and Black Holes on Your Mobile Phone challenge.


GRB Watcher is Wep Application that is written by PHP and javascript.

This app processes the acquired data from and map the occurrence position of GRB on the Google map.

In addition, it displays the information matched to the direction of the smartphone.

In this app, you can know the infomation of occurrence of the GRB and identification number of GRB.

Project Information

License: MIT license (MIT)

Source Code/Project URL:


GRBwatch -


  • Hiroki Nishino
  • hidenari tsukamoto