JSON Sample File ================ The GCN Notice information and targets for observatories is uploaded to the broker site using a JSON file through a private API. Below is a sample JSON file. The ``assignments`` key is optional ("Retraction" notices do not specify assignments). .. code-block:: json { "alert": { "ligo_run": "O3", "graceid": "S190501a", "SEtype": "S", "datetime": "2019-06-01T03:53:23" }, "gcnnotice": { "gcntype": "Initial", "datetime": "2019-06-01T04:21:31" }, "assignments": { "OBS01": { "NGC3527": 4.579577594439791e-07, "SDSSJ111036.33+291631.5": 4.571471198600905e-07, "SDSSJ110931.04+290153.1": 4.570529667464678e-07, "SDSSJ105717.80+262039.7": 4.565977915949241e-07, "UGC06147": 4.5358279508508366e-07 }, "OBS02": { "1790410": 4.754568836051921e-07, "1751874": 4.729037759899382e-07, "SDSSJ105332.98+254611.7": 4.727430685333189e-07, "SDSSJ105324.63+254607.4": 4.7274177982139006e-07, "1831688": 4.674778642517513e-07, }, "OBS03": { "SDSSJ105530.54+260442.7": 4.6561621329489456e-07, "SDSSJ110509.50+283702.6": 4.629186351956917e-07, "SDSSJ110619.55+282301.5": 4.608629463520819e-07, "NGC3527": 4.579577594439791e-07, "UGC06147": 4.5358279508508366e-07 } } }