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                        "gracedb": "https://gracedb.ligo.org/superevents/S250207bu/view/"
                    },
                    "event": {
                        "far": 1.620409e-05,
                        "time": "2025-02-07T13:57:36.545Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 596.527958333837,
                        "area_90": 2809.115830521776,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.002124399071672477,
                            "HasMassGap": 0.6284734015002301,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
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                            "L1",
                            "V1"
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                        "significant": false,
                        "skymap_hash": "03fb6e4d44d898e577e07349ae328424",
                        "classification": {
                            "BBH": 0.043886728,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.956113272
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                        "skymap_version": 0,
                        "central_frequency": null
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                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-07T13:58:07Z",
                    "superevent_id": "S250207bu",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-07T13:58:08.019199Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-07T13:58:08.019216Z",
                "modified": "2025-02-07T13:58:08.032001Z"
            }
        },
        {
            "id": 7826,
            "sequence_number": 1,
            "sequence_type": "UPDATE",
            "message": {
                "id": 175828,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "9b66bd4b-540c-4af5-a355-158d847a3d43",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "1.4538 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/140472_78196104.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.5911e+02 [TeV]",
                    "src_ra": "132.9300d {+08h 51m 43s} (J2000),\n133.2900d {+08h 53m 10s} (current),\n132.2118d {+08h 48m 51s} (1950)",
                    "stream": "25",
                    "run_num": "140472",
                    "src_dec": "+20.6600d {+20d 39' 36\"} (J2000),\n+20.5645d {+20d 33' 52\"} (current),\n+20.8483d {+20d 50' 54\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "1",
                    "sun_dist": "170.50 [deg]   Sun_angle= -11.5 [hr] (East of Sun)",
                    "event_num": "78196104",
                    "moon_dist": "51.98 [deg]",
                    "src_error": "99.30 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "321.47d {+21h 25m 53s}  -15.11d {-15d 06' 40\"}",
                    "ecl_coords": "129.65,  2.93 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "205.88, 35.32 [deg] galactic lon,lat of the event",
                    "moon_postn": "76.35d {+05h 05m 25s}  +27.99d {+27d 59' 19\"}",
                    "signalness": "4.6806e-01 [dn]",
                    "notice_date": "Fri 07 Feb 25 13:52:11 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "50.99 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20713 TJD;    38 DOY;   25/02/07 (yy/mm/dd)",
                    "discovery_time": "7675 SOD {02:07:55.27} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Fri 07 Feb 25 13:52:11 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          140472\nEVENT_NUM:        78196104\nSRC_RA:           132.9300d {+08h 51m 43s} (J2000),\n                  133.2900d {+08h 53m 10s} (current),\n                  132.2118d {+08h 48m 51s} (1950)\nSRC_DEC:          +20.6600d {+20d 39' 36\"} (J2000),\n                  +20.5645d {+20d 33' 52\"} (current),\n                  +20.8483d {+20d 50' 54\"} (1950)\nSRC_ERROR:        99.30 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      50.99 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20713 TJD;    38 DOY;   25/02/07 (yy/mm/dd)\nDISCOVERY_TIME:   7675 SOD {02:07:55.27} UT\nREVISION:         1\nENERGY:           1.5911e+02 [TeV]\nSIGNALNESS:       4.6806e-01 [dn]\nFAR:              1.4538 [yr^-1]\nSUN_POSTN:        321.47d {+21h 25m 53s}  -15.11d {-15d 06' 40\"}\nSUN_DIST:         170.50 [deg]   Sun_angle= -11.5 [hr] (East of Sun)\nMOON_POSTN:        76.35d {+05h 05m 25s}  +27.99d {+27d 59' 19\"}\nMOON_DIST:         51.98 [deg]\nGAL_COORDS:       205.88, 35.32 [deg] galactic lon,lat of the event\nECL_COORDS:       129.65,  2.93 [deg] ecliptic lon,lat of the event\nCOMMENTS:         IceCube Bronze event.  \nCOMMENTS:         The position error is statistical only, there is no systematic added.  \n",
                "published": "2025-02-07T13:52:11Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-02-07T13:52:12.773291Z",
                "modified": "2025-02-07T13:52:12.785431Z"
            }
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        {
            "id": 7825,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 175821,
                "topic": "igwn.gwalert",
                "uuid": "c65e4328-a308-440c-b503-2bb58c15ee02",
                "title": "S250207bs - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
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                        "gracedb": "https://gracedb.ligo.org/superevents/S250207bs/view/"
                    },
                    "event": {
                        "far": 2.298643e-05,
                        "time": "2025-02-07T13:27:12.844Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 852.9321669458485,
                        "area_90": 4542.257207882836,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.039106227106227104,
                            "HasRemnant": 0.0
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                        "instruments": [
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                        "significant": false,
                        "skymap_hash": "a69f412bf91fadea4011a9721a326498",
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                            "Terrestrial": 0.972378875
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                        "skymap_version": 0,
                        "central_frequency": null
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                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-07T13:32:17Z",
                    "superevent_id": "S250207bs",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-07T13:32:18.420576Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-07T13:32:18.420594Z",
                "modified": "2025-02-07T13:32:18.429829Z"
            }
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    ]
}