MAXI/GSC Unknown Source Position

MAXI/GSC unknown-source detection notice for a GRB or other unknown X-ray transient.

View the source on GitHub

Properties

* = required

Name	Type	Description
$schema	string
rectangular_error_corners	array	Coordinates of the four corners of the rectangular error box. Each element is a [RA, Dec] pair in degrees in J2000 equatorial coordinates. RA is in the range [0, 360].
flux	number	X-ray flux of the event in the energy band specified by flux_spectral_band and flux_spectral_unit [erg/cm^2/s].
flux_error	number	1-sigma statistical uncertainty on flux [erg/cm^2/s].
detection_timescale	number	Detection time scale of the event; unit specified by detection_timescale_units.
detection_timescale_units	string	Unit of detection_timescale: s (seconds), scan (one camera scan), orbit (one ISS orbit), or d (days). Options: s, scan, orbit, d

Properties from all of the following:

These properties are inherited using the allOf syntax. In order to validate, all of the following schemas must be individually valid, based on their respective properties. See allOf for more information.

Name		Description
Alert.schema.json		core schema object (click to expand)
DateTime.schema.json		core schema object (click to expand)
Event.schema.json		core schema object (click to expand)
GeoLocBase.schema.json		core schema object (click to expand)
Localization.schema.json		core schema object (click to expand)
Reporter.schema.json		core schema object (click to expand)
Statistics.schema.json		core schema object (click to expand)
AdditionalInfo.schema.json		core schema object (click to expand)
Spectral.schema.json		core schema object (click to expand)

Example

{
  "$schema": "https://gcn.nasa.gov/schema/v7.2.1/gcn/notices/maxi/gsc.unknown.schema.json",
  "mission": "MAXI",
  "instrument": "GSC",
  "alert_datetime": "2023-02-20T09:53:39Z",
  "alert_type": "update",
  "alert_tense": "current",
  "trigger_time": "2023-02-20T08:56:01Z",
  "id": "9995289617",
  "ra": 346.56,
  "dec": 18.61,
  "ra_dec_error": 1.5,
  "containment_probability": 0.9,
  "systematic_included": false,
  "flux": 1.69e-9,
  "flux_error": 2.6e-10,
  "event_name": "GRB 230220A",
  "detection_timescale": 10,
  "detection_timescale_units": "s",
  "flux_spectral_band": [
    2,
    4
  ],
  "flux_spectral_unit": "keV",
  "latitude": 0,
  "longitude": 0,
  "record_number": 1
}