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GCN Circulars

GCN Circulars are rapid bulletins submitted by and distributed to the community. See the documentation for help with subscribing to or submitting Circulars.

Search for Circulars by submitter, subject, or body text (e.g. 'Fermi GRB').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
Advanced Search

To narrow the search results, use advanced search syntax. This allows for specifying which circular field to search (submitter, subject, and/or body). For additional information, refer to the advanced search documentation.

Advanced Search Examples (click to copy):

subject:"Swift"
body:"GRB"
submitter:"Judith Racusin"

15 results found.

  1. GRB 071025: Kuiper Telescope Optical Observations
  2. GRB 071025: SARA VRI upper limits
  3. GRB 071025 Milagro GeV/TeV Observations
  4. GRB 071025: SQIID JHK photometry
  5. GRB071025: Optical Pre-imaging from Palomar
  6. Swift UVOT upper limits
  7. GRB 071025: Swift-XRT Team refined analysis
  8. GRB 071025, Swift-BAT refined analysis
  9. GRB 071025: Early Super-LOTIS Observations
  10. GRB 071025: R/I-band update
  11. GRB 071025: ROTSE-III Refined Analysis
  12. GRB 071025: I-detection, R-dropout?
  13. GRB 071025: Swift XRT refined position
  14. GRB 071025: ROTSE-III Detection of Optical Counterpart
  15. GRB 071025: Swift detection of a burst

Advanced

Download all Circulars as a .tar.gz archive (updated once a day):
Questions or comments?
Contact GCN directly.
Have you found a bug in GCN?
Open an issue.
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Get involved on GitHub.

gcn.nasa.gov

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