gcncirculars

GCN Circular

GCN Circulars are rapid astronomical bulletins submitted by and distributed to community members worldwide. They are used to share discoveries, observations, quantitative near-term predictions, requests for follow-up observations, or future observing plans related to high-energy, multi-messenger, and variable or transient astrophysical events. An archive of all GCN Circulars can be found at https://gcn.nasa.gov/circulars

View the source on GitHub

Properties

* = required

Name	Type	Description
eventId*	string	Event name, automatically inferred from the subject
submitter*	string	Name, affiliation, and email address of the person who submitted the Circular, in the form `A. E. Einstein at IAS <albert.einstein@example.edu>`
submittedHow	enum	Specifies the method by which the user submitted the Circular Options: web, email, email-legacy, api
subject*	string	Subject line of the Circular
circularId*	number	Circular ID assigned to the Circular in the GCN Circulars archive. This value is unique to each published Circular and increments by 1
format	enum	Format of the body text as a MIME type. See https://gcn.nasa.gov/docs/circulars/markdown for documentation on using Markdown in Circulars Options: text/plain, text/markdown
body*	string	Body text
createdOn*	number	Date and time the Circular is accepted and published onto the GCN Circulars archive, formatted as a UNIX timestamp (milliseconds since the UNIX epoch)

Example

{
  "$schema": "https://gcn.nasa.gov/schema/v4.2.0/gcn/circulars.schema.json",
  "eventId": "GRB 230410A",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "submittedHow": "email-legacy",
  "subject": "GRB 230410A: Fermi GBM Final Real-time Localization",
  "circularId": 33603,
  "format": "text/plain",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\\n\\nAt 11:26:00 UT on 10 Apr 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230410A (trigger 702818765.135562 / 230410476).\\n\\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 352.3, Dec = 22.9 (J2000 degrees, equivalent to J2000 23h 29m, 22d 53'), with a statistical uncertainty of 2.1 degrees.\\n\\nThe angle from the Fermi LAT boresight is 72.0 degrees.\\n\\nThe skymap can be found here:\\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230410476/quicklook/glg_skymap_all_bn230410476.png\\n\\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230410476/quicklook/glg_healpix_all_bn230410476.fit\\n\\nThe GBM light curve can be found here:\\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230410476/quicklook/glg_lc_medres34_bn230410476.gif",
  "createdOn": 1718212589034
}