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                "title": "S250228dv - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250228dv/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250228dv/view/"
                    },
                    "event": {
                        "far": 1.56759e-05,
                        "time": "2025-02-28T18:18:02.753Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 532.1121710638798,
                        "area_90": 1886.7321144347031,
                        "duration": 0.010851,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "8208f77d087cb854c2029dd5aecae6ea",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 351.00882
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-28T18:19:36Z",
                    "superevent_id": "S250228dv",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-28T18:19:37.256168Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-28T18:19:37.256194Z",
                "modified": "2025-02-28T18:19:37.266426Z"
            }
        },
        {
            "id": 8174,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 184298,
                "topic": "igwn.gwalert",
                "uuid": "a4ec4e30-6721-41f0-b84f-8d4fa1acba80",
                "title": "S250228dv - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250228dv/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250228dv/view/"
                    },
                    "event": {
                        "far": 1.56759e-05,
                        "time": "2025-02-28T18:18:02.753Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 532.1121710638798,
                        "area_90": 1886.7321144347031,
                        "duration": 0.010851,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "8208f77d087cb854c2029dd5aecae6ea",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 351.00882
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-28T18:24:10Z",
                    "superevent_id": "S250228dv",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-28T18:24:11.633765Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-28T18:24:11.633798Z",
                "modified": "2025-02-28T18:24:11.642162Z"
            }
        },
        {
            "id": 8175,
            "sequence_number": 1,
            "sequence_type": "UPDATE",
            "message": {
                "id": 184318,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "829a5f1c-5519-4553-b715-e61f1119c781",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "3.7051 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/140436_11917698.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.1429e+02 [TeV]",
                    "src_ra": "253.3000d {+16h 53m 12s} (J2000),\n253.6246d {+16h 54m 30s} (current),\n252.6536d {+16h 50m 37s} (1950)",
                    "stream": "25",
                    "run_num": "140436",
                    "src_dec": "-1.3100d {-01d 18' 35\"} (J2000),\n-1.3498d {-01d 20' 58\"} (current),\n-1.2285d {-01d 13' 42\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "1",
                    "sun_dist": "64.62 [deg]   Sun_angle= 4.3 [hr] (West of Sun)",
                    "event_num": "11917698",
                    "moon_dist": "126.30 [deg]",
                    "src_error": "28.49 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "317.53d {+21h 10m 08s}  -16.31d {-16d 18' 49\"}",
                    "ecl_coords": "252.07, 21.10 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "17.18, 25.37 [deg] galactic lon,lat of the event",
                    "moon_postn": "20.38d {+01h 21m 31s}  +10.83d {+10d 50' 02\"}",
                    "signalness": "3.0465e-01 [dn]",
                    "notice_date": "Mon 03 Feb 25 15:43:11 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "15.60 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20709 TJD;    34 DOY;   25/02/03 (yy/mm/dd)",
                    "discovery_time": "14369 SOD {03:59:29.20} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Mon 03 Feb 25 15:43:11 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          140436\nEVENT_NUM:        11917698\nSRC_RA:           253.3000d {+16h 53m 12s} (J2000),\n                  253.6246d {+16h 54m 30s} (current),\n                  252.6536d {+16h 50m 37s} (1950)\nSRC_DEC:           -1.3100d {-01d 18' 35\"} (J2000),\n                   -1.3498d {-01d 20' 58\"} (current),\n                   -1.2285d {-01d 13' 42\"} (1950)\nSRC_ERROR:        28.49 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      15.60 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20709 TJD;    34 DOY;   25/02/03 (yy/mm/dd)\nDISCOVERY_TIME:   14369 SOD {03:59:29.20} UT\nREVISION:         1\nENERGY:           1.1429e+02 [TeV]\nSIGNALNESS:       3.0465e-01 [dn]\nFAR:              3.7051 [yr^-1]\nSUN_POSTN:        317.53d {+21h 10m 08s}  -16.31d {-16d 18' 49\"}\nSUN_DIST:          64.62 [deg]   Sun_angle= 4.3 [hr] (West of Sun)\nMOON_POSTN:        20.38d {+01h 21m 31s}  +10.83d {+10d 50' 02\"}\nMOON_DIST:        126.30 [deg]\nGAL_COORDS:        17.18, 25.37 [deg] galactic lon,lat of the event\nECL_COORDS:       252.07, 21.10 [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": "2025-02-03T15:43:11Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-02-28T19:29:13.898555Z",
                "modified": "2025-02-28T19:29:13.908306Z"
            }
        },
        {
            "id": 8176,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 184319,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "b89ece34-bd30-4de5-887e-6adc9857c34a",
                "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": "130.2648d {+08h 41m 04s} (J2000),\n130.6190d {+08h 42m 29s} (current),\n129.5585d {+08h 38m 14s} (1950)",
                    "stream": "25",
                    "run_num": "140472",
                    "src_dec": "+17.0426d {+17d 02' 33\"} (J2000),\n+16.9519d {+16d 57' 07\"} (current),\n+17.2212d {+17d 13' 16\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "0",
                    "sun_dist": "169.90 [deg]   Sun_angle= -11.3 [hr] (East of Sun)",
                    "event_num": "78196104",
                    "moon_dist": "57.60 [deg]",
                    "src_error": "266.14 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "320.98d {+21h 23m 56s}  -15.26d {-15d 15' 52\"}",
                    "ecl_coords": "128.18, -1.22 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "208.88, 31.69 [deg] galactic lon,lat of the event",
                    "moon_postn": "68.87d {+04h 35m 30s}  +27.05d {+27d 02' 42\"}",
                    "signalness": "4.6806e-01 [dn]",
                    "notice_date": "Fri 07 Feb 25 02:08:41 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "103.67 [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 02:08:41 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          140472\nEVENT_NUM:        78196104\nSRC_RA:           130.2648d {+08h 41m 04s} (J2000),\n                  130.6190d {+08h 42m 29s} (current),\n                  129.5585d {+08h 38m 14s} (1950)\nSRC_DEC:          +17.0426d {+17d 02' 33\"} (J2000),\n                  +16.9519d {+16d 57' 07\"} (current),\n                  +17.2212d {+17d 13' 16\"} (1950)\nSRC_ERROR:        266.14 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      103.67 [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:         0\nENERGY:           1.5911e+02 [TeV]\nSIGNALNESS:       4.6806e-01 [dn]\nFAR:              1.4538 [yr^-1]\nSUN_POSTN:        320.98d {+21h 23m 56s}  -15.26d {-15d 15' 52\"}\nSUN_DIST:         169.90 [deg]   Sun_angle= -11.3 [hr] (East of Sun)\nMOON_POSTN:        68.87d {+04h 35m 30s}  +27.05d {+27d 02' 42\"}\nMOON_DIST:         57.60 [deg]\nGAL_COORDS:       208.88, 31.69 [deg] galactic lon,lat of the event\nECL_COORDS:       128.18, -1.22 [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": "2025-02-07T02:08:41Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-02-28T19:29:13.984920Z",
                "modified": "2025-02-28T19:29:13.990256Z"
            }
        },
        {
            "id": 8177,
            "sequence_number": 1,
            "sequence_type": "UPDATE",
            "message": {
                "id": 184320,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "81fb98ae-7ebd-4d25-854a-26e1303f049a",
                "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": "2025-02-28T19:29:14.034366Z",
                "modified": "2025-02-28T19:29:14.039980Z"
            }
        },
        {
            "id": 8178,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 184322,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "a69f1982-b386-42bd-8a44-7edf183a8dc6",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "3.7051 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/140436_11917698.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.1429e+02 [TeV]",
                    "src_ra": "253.2663d {+16h 53m 04s} (J2000),\n253.5908d {+16h 54m 22s} (current),\n252.6200d {+16h 50m 29s} (1950)",
                    "stream": "25",
                    "run_num": "140436",
                    "src_dec": "-1.2745d {-01d 16' 27\"} (J2000),\n-1.3143d {-01d 18' 51\"} (current),\n-1.1928d {-01d 11' 33\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "0",
                    "sun_dist": "64.21 [deg]   Sun_angle= 4.2 [hr] (West of Sun)",
                    "event_num": "11917698",
                    "moon_dist": "120.38 [deg]",
                    "src_error": "30.80 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "317.04d {+21h 08m 09s}  -16.46d {-16d 27' 29\"}",
                    "ecl_coords": "252.03, 21.13 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "17.20, 25.42 [deg] galactic lon,lat of the event",
                    "moon_postn": "14.08d {+00h 56m 18s}   +7.63d {+07d 37' 43\"}",
                    "signalness": "3.0465e-01 [dn]",
                    "notice_date": "Mon 03 Feb 25 04:00:22 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "12.00 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20709 TJD;    34 DOY;   25/02/03 (yy/mm/dd)",
                    "discovery_time": "14369 SOD {03:59:29.20} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Mon 03 Feb 25 04:00:22 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          140436\nEVENT_NUM:        11917698\nSRC_RA:           253.2663d {+16h 53m 04s} (J2000),\n                  253.5908d {+16h 54m 22s} (current),\n                  252.6200d {+16h 50m 29s} (1950)\nSRC_DEC:           -1.2745d {-01d 16' 27\"} (J2000),\n                   -1.3143d {-01d 18' 51\"} (current),\n                   -1.1928d {-01d 11' 33\"} (1950)\nSRC_ERROR:        30.80 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      12.00 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20709 TJD;    34 DOY;   25/02/03 (yy/mm/dd)\nDISCOVERY_TIME:   14369 SOD {03:59:29.20} UT\nREVISION:         0\nENERGY:           1.1429e+02 [TeV]\nSIGNALNESS:       3.0465e-01 [dn]\nFAR:              3.7051 [yr^-1]\nSUN_POSTN:        317.04d {+21h 08m 09s}  -16.46d {-16d 27' 29\"}\nSUN_DIST:          64.21 [deg]   Sun_angle= 4.2 [hr] (West of Sun)\nMOON_POSTN:        14.08d {+00h 56m 18s}   +7.63d {+07d 37' 43\"}\nMOON_DIST:        120.38 [deg]\nGAL_COORDS:        17.20, 25.42 [deg] galactic lon,lat of the event\nECL_COORDS:       252.03, 21.13 [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": "2025-02-03T04:00:22Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-02-28T19:29:14.093930Z",
                "modified": "2025-02-28T19:29:14.098864Z"
            }
        },
        {
            "id": 8179,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 184362,
                "topic": "igwn.gwalert",
                "uuid": "5babc342-6ebd-4792-b664-30b808a398be",
                "title": "S250228ep - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250228ep/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250228ep/view/"
                    },
                    "event": {
                        "far": 2.067607601929922e-05,
                        "time": "2025-02-28T22:20:31.195Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 5107.1018311099515,
                        "area_90": 15426.217198981249,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.05584942834942835,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "90231ccb1b307956c1f71480bdf2d826",
                        "classification": {
                            "BBH": 0.07110852560833825,
                            "BNS": 0.0,
                            "NSBH": 0.002094656908529876,
                            "Terrestrial": 0.9267968174831319
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-28T22:20:56Z",
                    "superevent_id": "S250228ep",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-28T22:20:57.920382Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-28T22:20:57.920426Z",
                "modified": "2025-02-28T22:20:57.933422Z"
            }
        },
        {
            "id": 8180,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 184363,
                "topic": "igwn.gwalert",
                "uuid": "7c02d1c9-1866-4c6e-ad9b-aab73179fa1e",
                "title": "S250228ep - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250228ep/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250228ep/view/"
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                "message_text": "",
                "published": "2025-03-01T11:36:58.098973Z",
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                "id": 184524,
                "topic": "igwn.gwalert",
                "uuid": "ccdc78ec-5087-498d-9288-d554b708c448",
                "title": "S250301aq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
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                    "alert_type": "PRELIMINARY",
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                    "time_created": "2025-03-01T11:41:31Z",
                    "superevent_id": "S250301aq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-03-01T11:41:32.508013Z",
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                "retracted": false,
                "created": "2025-03-01T11:41:32.508044Z",
                "modified": "2025-03-01T11:41:32.516670Z"
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            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 184528,
                "topic": "igwn.gwalert",
                "uuid": "a236cfbd-c86f-49d0-98d6-9883a345f8bc",
                "title": "S250301at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
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                        "time": "2025-03-01T12:15:04.828Z",
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                    "alert_type": "PRELIMINARY",
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                    "time_created": "2025-03-01T12:17:40Z",
                    "superevent_id": "S250301at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-03-01T12:17:40.542185Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-03-01T12:17:40.542215Z",
                "modified": "2025-03-01T12:17:40.553006Z"
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            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 184529,
                "topic": "igwn.gwalert",
                "uuid": "5ead592b-cb5c-456f-890a-3bfad9c3dca9",
                "title": "S250301at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
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                        "time": "2025-03-01T12:15:04.828Z",
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                    "alert_type": "PRELIMINARY",
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                    "time_created": "2025-03-01T12:22:14Z",
                    "superevent_id": "S250301at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-03-01T12:22:15.901201Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-03-01T12:22:15.901231Z",
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        {
            "id": 8195,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 184554,
                "topic": "gcn.classic.text.ICECUBE_CASCADE",
                "uuid": "25ae5fdc-7edf-41ad-abbe-5272e1d951c2",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "0.5820 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_icecube_cascade/140500_12724443.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "67.51 [TeV]",
                    "src_ra": "249.9491d {+16h 39m 48s} (J2000),\n250.2809d {+16h 41m 07s} (current),\n249.2893d {+16h 37m 09s} (1950)",
                    "stream": "26",
                    "run_num": "140500",
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                    "revision": "0",
                    "sun_dist": "78.29 [deg]   Sun_angle= 5.3 [hr] (West of Sun)",
                    "event_num": "12724443",
                    "moon_dist": "70.77 [deg]",
                    "src_error": "6.01 [deg radius, stat+systematic, 90% containment]",
                    "sun_postn": "329.23d {+21h 56m 56s}  -12.50d {-12d 30' 07\"}",
                    "ecl_coords": "248.97, 17.70 [deg] ecliptic lon,lat of the event",
                    "event_name": "IceCubeCascade-250215a",
                    "gal_coords": "12.40, 26.63 [deg] galactic lon,lat of the event",
                    "moon_postn": "179.56d {+11h 58m 15s}   -0.13d {-00d 07' 40\"}",
                    "signalness": "8.6119e-01 [dn]",
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                    "notice_type": "ICECUBE Cascade",
                    "src_error50": "3.30 [deg radius, stat+systematic, 50% containment]",
                    "discovery_date": "20721 TJD;    46 DOY;   25/02/15 (yy/mm/dd)",
                    "discovery_time": "39942 SOD {11:05:42.72} UT",
                    "skymap_png_url": "https://roc.icecube.wisc.edu/public/hese_cascades/hese_60721_run00140500.evt000012724443.png",
                    "skymap_fits_url": "https://roc.icecube.wisc.edu/public/hese_cascades/hese_60721_run00140500.evt000012724443.fits"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Sat 15 Feb 25 11:10:31 UT\nNOTICE_TYPE:      ICECUBE Cascade \nEVENT_NAME:       IceCubeCascade-250215a\nSTREAM:           26\nRUN_NUM:          140500\nEVENT_NUM:        12724443\nSRC_RA:           249.9491d {+16h 39m 48s} (J2000),\n                  250.2809d {+16h 41m 07s} (current),\n                  249.2893d {+16h 37m 09s} (1950)\nSRC_DEC:           -4.2826d {-04d 16' 56\"} (J2000),\n                   -4.3302d {-04d 19' 48\"} (current),\n                   -4.1856d {-04d 11' 07\"} (1950)\nSRC_ERROR:        6.01 [deg radius, stat+systematic, 90% containment]\nSRC_ERROR50:      3.30 [deg radius, stat+systematic, 50% containment]\nDISCOVERY_DATE:   20721 TJD;    46 DOY;   25/02/15 (yy/mm/dd)\nDISCOVERY_TIME:   39942 SOD {11:05:42.72} UT\nREVISION:         0\nENERGY:           67.51 [TeV]\nSIGNALNESS:       8.6119e-01 [dn]\nFAR:              0.5820 [yr^-1]\nSUN_POSTN:        329.23d {+21h 56m 56s}  -12.50d {-12d 30' 07\"}\nSUN_DIST:          78.29 [deg]   Sun_angle= 5.3 [hr] (West of Sun)\nMOON_POSTN:       179.56d {+11h 58m 15s}   -0.13d {-00d 07' 40\"}\nMOON_DIST:         70.77 [deg]\nGAL_COORDS:        12.40, 26.63 [deg] galactic lon,lat of the event\nECL_COORDS:       248.97, 17.70 [deg] ecliptic lon,lat of the event\nSKYMAP_FITS_URL:  https://roc.icecube.wisc.edu/public/hese_cascades/hese_60721_run00140500.evt000012724443.fits\nSKYMAP_PNG_URL:   https://roc.icecube.wisc.edu/public/hese_cascades/hese_60721_run00140500.evt000012724443.png\nCOMMENTS:         IceCube Cascade event.  \nCOMMENTS:         The position error is the combined statistical and the systematic.  \n",
                "published": "2025-02-15T11:10:31Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-03-01T13:44:56.157666Z",
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            "sequence_number": 0,
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            "message": {
                "id": 184692,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_GOLD",
                "uuid": "dce52a04-fdcd-4e73-830c-aa2c20cf970f",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
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                    "urls": {
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                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.4538e+03 [TeV]",
                    "src_ra": "348.3255d {+23h 13m 18s} (J2000),\n348.6461d {+23h 14m 35s} (current),\n347.6886d {+23h 10m 45s} (1950)",
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                    "revision": "0",
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                    "signalness": "9.7230e-01 [dn]",
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                    "notice_type": "ICECUBE Astrotrack Gold",
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                    "discovery_date": "20736 TJD;    61 DOY;   25/03/02 (yy/mm/dd)",
                    "discovery_time": "12052 SOD {03:20:52.90} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Sun 02 Mar 25 03:21:47 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Gold \nSTREAM:           24\nRUN_NUM:          140601\nEVENT_NUM:        60511904\nSRC_RA:           348.3255d {+23h 13m 18s} (J2000),\n                  348.6461d {+23h 14m 35s} (current),\n                  347.6886d {+23h 10m 45s} (1950)\nSRC_DEC:           +3.6783d {+03d 40' 42\"} (J2000),\n                   +3.8156d {+03d 48' 56\"} (current),\n                   +3.4060d {+03d 24' 21\"} (1950)\nSRC_ERROR:        30.80 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      12.00 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20736 TJD;    61 DOY;   25/03/02 (yy/mm/dd)\nDISCOVERY_TIME:   12052 SOD {03:20:52.90} UT\nREVISION:         0\nENERGY:           1.4538e+03 [TeV]\nSIGNALNESS:       9.7230e-01 [dn]\nFAR:              0.1579 [yr^-1]\nSUN_POSTN:        343.21d {+22h 52m 50s}   -7.14d {-07d 08' 11\"}\nSUN_DIST:          12.22 [deg]   Sun_angle= -0.4 [hr] (East of Sun)\nMOON_POSTN:         9.44d {+00h 37m 46s}   +5.27d {+05d 16' 09\"}\nMOON_DIST:         20.78 [deg]\nGAL_COORDS:        81.59,-51.14 [deg] galactic lon,lat of the event\nECL_COORDS:       350.72,  8.00 [deg] ecliptic lon,lat of the event\nCOMMENTS:         IceCube Gold event.  \nCOMMENTS:         The position error is statistical only, there is no systematic added.  \n",
                "published": "2025-03-02T03:21:47Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-03-02T04:05:48.381789Z",
                "modified": "2025-03-02T04:05:48.387426Z"
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            "message": {
                "id": 184771,
                "topic": "igwn.gwalert",
                "uuid": "bc26f2fc-ff62-436a-9418-681e7b05c469",
                "title": "S250302v - PRELIMINARY",
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                    "time_created": "2025-03-02T10:50:42Z",
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                "id": 184772,
                "topic": "igwn.gwalert",
                "uuid": "1d17440b-86b9-4852-a7cc-ba8789fcf9ea",
                "title": "S250302v - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
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                            "Terrestrial": 0.9950537930838255
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                    },
                    "alert_type": "PRELIMINARY",
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                    "time_created": "2025-03-02T10:55:17Z",
                    "superevent_id": "S250302v",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-03-02T10:55:18.252905Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-03-02T10:55:18.252936Z",
                "modified": "2025-03-02T10:55:18.261724Z"
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            "id": 8199,
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            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 184804,
                "topic": "igwn.gwalert",
                "uuid": "6c4961f6-b31c-436e-9ff9-b155a7a517df",
                "title": "S250302av - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
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