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HTTP 200 OK
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                            "L1",
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                        "skymap_hash": "d07da21895ac7ecb7a70f9e4f0c33ea0",
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                            "BNS": 1.6886060889606241e-31,
                            "NSBH": 9.346905666616232e-05,
                            "Terrestrial": 5.7820859211688e-11
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-11-08T10:33:10Z",
                    "superevent_id": "S251108dn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-11-08T10:33:11.349742Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-11-08T10:33:11.349764Z",
                "modified": "2025-11-08T10:33:11.361105Z"
            }
        },
        {
            "id": 10989,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5793812,
                "topic": "igwn.gwalert",
                "uuid": "3a884a9d-1941-43ae-a36e-c338c550bdd6",
                "title": "S251108cu - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251108cu/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251108cu/view/"
                    },
                    "event": {
                        "far": 2.26383e-05,
                        "time": "2025-11-08T09:00:09.807Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 154.4300307188547,
                        "area_90": 526.2371155474017,
                        "duration": 0.014152,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
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                        "significant": false,
                        "skymap_hash": "def45c186c2e79e539f07cc4480c8de3",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 678.958252
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-11-08T09:06:19Z",
                    "superevent_id": "S251108cu",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-11-08T09:06:19.832086Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-11-08T09:06:19.832107Z",
                "modified": "2025-11-08T09:06:19.839324Z"
            }
        },
        {
            "id": 10988,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5793811,
                "topic": "igwn.gwalert",
                "uuid": "a59e284e-605a-425e-85b0-607cbe0de82d",
                "title": "S251108cu - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251108cu/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251108cu/view/"
                    },
                    "event": {
                        "far": 2.26383e-05,
                        "time": "2025-11-08T09:00:09.807Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 154.4300307188547,
                        "area_90": 526.2371155474017,
                        "duration": 0.014152,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
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                        "significant": false,
                        "skymap_hash": "def45c186c2e79e539f07cc4480c8de3",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 678.958252
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                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-11-08T09:01:46Z",
                    "superevent_id": "S251108cu",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-11-08T09:01:48.150463Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-11-08T09:01:48.150485Z",
                "modified": "2025-11-08T09:01:48.166626Z"
            }
        },
        {
            "id": 10987,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5793809,
                "topic": "igwn.gwalert",
                "uuid": "c75d97a5-e8d1-494b-9936-9d0ce03bf62f",
                "title": "S251108cr - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251108cr/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251108cr/view/"
                    },
                    "event": {
                        "far": 1.87518713860836e-05,
                        "time": "2025-11-08T08:46:51.016Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 425.83661323901595,
                        "area_90": 1542.6217198981249,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
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                        "significant": false,
                        "skymap_hash": "b2d07f56f2b8b62d83625ea3edeb4f13",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0026412978697951672,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9973587021302048
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-11-08T08:51:51Z",
                    "superevent_id": "S251108cr",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-11-08T08:51:51.786494Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-11-08T08:51:51.786517Z",
                "modified": "2025-11-08T08:51:51.815341Z"
            }
        },
        {
            "id": 10986,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5793808,
                "topic": "igwn.gwalert",
                "uuid": "9cf6057a-9e24-45aa-b203-30404989ed95",
                "title": "S251108cr - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251108cr/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251108cr/view/"
                    },
                    "event": {
                        "far": 1.87518713860836e-05,
                        "time": "2025-11-08T08:46:51.016Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 434.7541082193845,
                        "area_90": 1598.0151004820618,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "18292b8b525878d548b9051a21ab124e",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0026412978697952037,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9973587021302048
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-11-08T08:47:17Z",
                    "superevent_id": "S251108cr",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-11-08T08:47:18.835167Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-11-08T08:47:18.835202Z",
                "modified": "2025-11-08T08:47:18.868774Z"
            }
        },
        {
            "id": 10985,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 5793714,
                "topic": "gcn.classic.text.ICECUBE_CASCADE",
                "uuid": "00d595d2-13c9-4eb9-870c-3c799bf0b19f",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "0.3110 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_icecube_cascade/141568_42562719.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "106.19 [TeV]",
                    "src_ra": "285.1968d {+19h 00m 47s} (J2000),\n285.6746d {+19h 02m 42s} (current),\n284.2713d {+18h 57m 05s} (1950)",
                    "stream": "26",
                    "run_num": "141568",
                    "src_dec": "-46.5855d {-46d 35' 07\"} (J2000),\n-46.5472d {-46d 32' 49\"} (current),\n-46.6563d {-46d 39' 22\"} (1950)",
                    "comments": "IceCube Cascade event.\nThe position error is the combined statistical and the systematic.",
                    "revision": "0",
                    "sun_dist": "59.22 [deg]   Sun_angle= -4.2 [hr] (East of Sun)",
                    "event_num": "42562719",
                    "moon_dist": "150.85 [deg]",
                    "src_error": "13.58 [deg radius, stat+systematic, 90% containment]",
                    "sun_postn": "223.24d {+14h 52m 58s}  -16.54d {-16d 32' 21\"}",
                    "ecl_coords": "281.35,-23.74 [deg] ecliptic lon,lat of the event",
                    "event_name": "IceCubeCascade-251107a",
                    "gal_coords": "350.23,-20.87 [deg] galactic lon,lat of the event",
                    "moon_postn": "77.00d {+05h 08m 01s}  +27.96d {+27d 57' 25\"}",
                    "signalness": "9.0012e-01 [dn]",
                    "notice_date": "Fri 07 Nov 25 21:03:32 UT",
                    "notice_type": "ICECUBE Cascade",
                    "src_error50": "7.45 [deg radius, stat+systematic, 50% containment]",
                    "discovery_date": "20986 TJD;   311 DOY;   25/11/07 (yy/mm/dd)",
                    "discovery_time": "75705 SOD {21:01:45.88} UT",
                    "skymap_png_url": "https://roc.icecube.wisc.edu/public/hese_cascades/hese_60986_run00141568.evt000042562719.png",
                    "skymap_fits_url": "https://roc.icecube.wisc.edu/public/hese_cascades/hese_60986_run00141568.evt000042562719.fits"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Fri 07 Nov 25 21:03:32 UT\nNOTICE_TYPE:      ICECUBE Cascade \nEVENT_NAME:       IceCubeCascade-251107a\nSTREAM:           26\nRUN_NUM:          141568\nEVENT_NUM:        42562719\nSRC_RA:           285.1968d {+19h 00m 47s} (J2000),\n                  285.6746d {+19h 02m 42s} (current),\n                  284.2713d {+18h 57m 05s} (1950)\nSRC_DEC:          -46.5855d {-46d 35' 07\"} (J2000),\n                  -46.5472d {-46d 32' 49\"} (current),\n                  -46.6563d {-46d 39' 22\"} (1950)\nSRC_ERROR:        13.58 [deg radius, stat+systematic, 90% containment]\nSRC_ERROR50:      7.45 [deg radius, stat+systematic, 50% containment]\nDISCOVERY_DATE:   20986 TJD;   311 DOY;   25/11/07 (yy/mm/dd)\nDISCOVERY_TIME:   75705 SOD {21:01:45.88} UT\nREVISION:         0\nENERGY:           106.19 [TeV]\nSIGNALNESS:       9.0012e-01 [dn]\nFAR:              0.3110 [yr^-1]\nSUN_POSTN:        223.24d {+14h 52m 58s}  -16.54d {-16d 32' 21\"}\nSUN_DIST:          59.22 [deg]   Sun_angle= -4.2 [hr] (East of Sun)\nMOON_POSTN:        77.00d {+05h 08m 01s}  +27.96d {+27d 57' 25\"}\nMOON_DIST:        150.85 [deg]\nGAL_COORDS:       350.23,-20.87 [deg] galactic lon,lat of the event\nECL_COORDS:       281.35,-23.74 [deg] ecliptic lon,lat of the event\nSKYMAP_FITS_URL:  https://roc.icecube.wisc.edu/public/hese_cascades/hese_60986_run00141568.evt000042562719.fits\nSKYMAP_PNG_URL:   https://roc.icecube.wisc.edu/public/hese_cascades/hese_60986_run00141568.evt000042562719.png\nCOMMENTS:         IceCube Cascade event.  \nCOMMENTS:         The position error is the combined statistical and the systematic.  \n",
                "published": "2025-11-07T21:03:32Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-11-07T21:03:34.049457Z",
                "modified": "2025-11-07T21:03:34.074005Z"
            }
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        {
            "id": 10984,
            "sequence_number": 1,
            "sequence_type": "UPDATE",
            "message": {
                "id": 5791187,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "d4d96a70-a9e4-4cfb-9280-b93200d29775",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "2.3507 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/141518_18513107.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.1337e+02 [TeV]",
                    "src_ra": "145.6299d {+09h 42m 31s} (J2000),\n145.9823d {+09h 43m 56s} (current),\n144.9464d {+09h 39m 47s} (1950)",
                    "stream": "25",
                    "run_num": "141518",
                    "src_dec": "+15.0600d {+15d 03' 36\"} (J2000),\n+14.9411d {+14d 56' 28\"} (current),\n+15.2889d {+15d 17' 20\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "1",
                    "sun_dist": "69.23 [deg]   Sun_angle= 4.3 [hr] (West of Sun)",
                    "event_num": "18513107",
                    "moon_dist": "114.06 [deg]",
                    "src_error": "45.60 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "210.26d {+14h 01m 02s}  -12.32d {-12d 19' 16\"}",
                    "ecl_coords": "142.87,  1.23 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "218.39, 44.59 [deg] galactic lon,lat of the event",
                    "moon_postn": "255.63d {+17h 02m 31s}  -27.93d {-27d 56' 02\"}",
                    "signalness": "3.4222e-01 [dn]",
                    "notice_date": "Sat 25 Oct 25 14:59:32 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "24.59 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20973 TJD;   298 DOY;   25/10/25 (yy/mm/dd)",
                    "discovery_time": "49673 SOD {13:47:53.26} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Sat 25 Oct 25 14:59:32 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          141518\nEVENT_NUM:        18513107\nSRC_RA:           145.6299d {+09h 42m 31s} (J2000),\n                  145.9823d {+09h 43m 56s} (current),\n                  144.9464d {+09h 39m 47s} (1950)\nSRC_DEC:          +15.0600d {+15d 03' 36\"} (J2000),\n                  +14.9411d {+14d 56' 28\"} (current),\n                  +15.2889d {+15d 17' 20\"} (1950)\nSRC_ERROR:        45.60 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      24.59 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20973 TJD;   298 DOY;   25/10/25 (yy/mm/dd)\nDISCOVERY_TIME:   49673 SOD {13:47:53.26} UT\nREVISION:         1\nENERGY:           1.1337e+02 [TeV]\nSIGNALNESS:       3.4222e-01 [dn]\nFAR:              2.3507 [yr^-1]\nSUN_POSTN:        210.26d {+14h 01m 02s}  -12.32d {-12d 19' 16\"}\nSUN_DIST:          69.23 [deg]   Sun_angle= 4.3 [hr] (West of Sun)\nMOON_POSTN:       255.63d {+17h 02m 31s}  -27.93d {-27d 56' 02\"}\nMOON_DIST:        114.06 [deg]\nGAL_COORDS:       218.39, 44.59 [deg] galactic lon,lat of the event\nECL_COORDS:       142.87,  1.23 [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": "2025-10-25T14:59:32Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-10-25T14:59:33.002485Z",
                "modified": "2025-10-25T14:59:33.014113Z"
            }
        },
        {
            "id": 10983,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 5791174,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "5ee3bcb5-8cd0-4af8-8a54-198b3c3fdb6f",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "2.3507 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/141518_18513107.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.1337e+02 [TeV]",
                    "src_ra": "145.6970d {+09h 42m 47s} (J2000),\n146.0498d {+09h 44m 12s} (current),\n145.0128d {+09h 40m 03s} (1950)",
                    "stream": "25",
                    "run_num": "141518",
                    "src_dec": "+15.3302d {+15d 19' 49\"} (J2000),\n+15.2112d {+15d 12' 40\"} (current),\n+15.5592d {+15d 33' 33\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "0",
                    "sun_dist": "69.21 [deg]   Sun_angle= 4.3 [hr] (West of Sun)",
                    "event_num": "18513107",
                    "moon_dist": "113.53 [deg]",
                    "src_error": "71.21 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "210.21d {+14h 00m 51s}  -12.30d {-12d 18' 15\"}",
                    "ecl_coords": "142.84,  1.51 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "218.08, 44.76 [deg] galactic lon,lat of the event",
                    "moon_postn": "254.97d {+16h 59m 53s}  -27.87d {-27d 52' 27\"}",
                    "signalness": "3.4222e-01 [dn]",
                    "notice_date": "Sat 25 Oct 25 13:48:32 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "27.74 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20973 TJD;   298 DOY;   25/10/25 (yy/mm/dd)",
                    "discovery_time": "49673 SOD {13:47:53.26} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Sat 25 Oct 25 13:48:32 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          141518\nEVENT_NUM:        18513107\nSRC_RA:           145.6970d {+09h 42m 47s} (J2000),\n                  146.0498d {+09h 44m 12s} (current),\n                  145.0128d {+09h 40m 03s} (1950)\nSRC_DEC:          +15.3302d {+15d 19' 49\"} (J2000),\n                  +15.2112d {+15d 12' 40\"} (current),\n                  +15.5592d {+15d 33' 33\"} (1950)\nSRC_ERROR:        71.21 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      27.74 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20973 TJD;   298 DOY;   25/10/25 (yy/mm/dd)\nDISCOVERY_TIME:   49673 SOD {13:47:53.26} UT\nREVISION:         0\nENERGY:           1.1337e+02 [TeV]\nSIGNALNESS:       3.4222e-01 [dn]\nFAR:              2.3507 [yr^-1]\nSUN_POSTN:        210.21d {+14h 00m 51s}  -12.30d {-12d 18' 15\"}\nSUN_DIST:          69.21 [deg]   Sun_angle= 4.3 [hr] (West of Sun)\nMOON_POSTN:       254.97d {+16h 59m 53s}  -27.87d {-27d 52' 27\"}\nMOON_DIST:        113.53 [deg]\nGAL_COORDS:       218.08, 44.76 [deg] galactic lon,lat of the event\nECL_COORDS:       142.84,  1.51 [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": "2025-10-25T13:48:32Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-10-25T13:48:33.530301Z",
                "modified": "2025-10-25T13:48:33.538571Z"
            }
        },
        {
            "id": 10982,
            "sequence_number": 1,
            "sequence_type": "UPDATE",
            "message": {
                "id": 5789365,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_GOLD",
                "uuid": "66eff946-a4fd-4fff-9392-16f9963a5aca",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "0.2566 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/141495_22018019.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.9226e+02 [TeV]",
                    "src_ra": "321.1100d {+21h 24m 26s} (J2000),\n321.3613d {+21h 25m 27s} (current),\n320.6233d {+21h 22m 30s} (1950)",
                    "stream": "24",
                    "run_num": "141495",
                    "src_dec": "+41.3100d {+41d 18' 36\"} (J2000),\n+41.4220d {+41d 25' 19\"} (current),\n+41.0940d {+41d 05' 39\"} (1950)",
                    "comments": "IceCube Gold event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "1",
                    "sun_dist": "117.27 [deg]   Sun_angle= -7.9 [hr] (East of Sun)",
                    "event_num": "22018019",
                    "moon_dist": "127.49 [deg]",
                    "src_error": "180.00 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "203.47d {+13h 33m 54s}   -9.80d {-09d 47' 46\"}",
                    "ecl_coords": "343.78, 52.49 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "86.51, -6.48 [deg] galactic lon,lat of the event",
                    "moon_postn": "171.98d {+11h 27m 55s}   +3.10d {+03d 06' 09\"}",
                    "signalness": "6.0730e-01 [dn]",
                    "notice_date": "Sat 18 Oct 25 11:12:42 UT",
                    "notice_type": "ICECUBE Astrotrack Gold",
                    "src_error50": "96.00 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20966 TJD;   291 DOY;   25/10/18 (yy/mm/dd)",
                    "discovery_time": "18342 SOD {05:05:42.97} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Sat 18 Oct 25 11:12:42 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Gold \nSTREAM:           24\nRUN_NUM:          141495\nEVENT_NUM:        22018019\nSRC_RA:           321.1100d {+21h 24m 26s} (J2000),\n                  321.3613d {+21h 25m 27s} (current),\n                  320.6233d {+21h 22m 30s} (1950)\nSRC_DEC:          +41.3100d {+41d 18' 36\"} (J2000),\n                  +41.4220d {+41d 25' 19\"} (current),\n                  +41.0940d {+41d 05' 39\"} (1950)\nSRC_ERROR:        180.00 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      96.00 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20966 TJD;   291 DOY;   25/10/18 (yy/mm/dd)\nDISCOVERY_TIME:   18342 SOD {05:05:42.97} UT\nREVISION:         1\nENERGY:           1.9226e+02 [TeV]\nSIGNALNESS:       6.0730e-01 [dn]\nFAR:              0.2566 [yr^-1]\nSUN_POSTN:        203.47d {+13h 33m 54s}   -9.80d {-09d 47' 46\"}\nSUN_DIST:         117.27 [deg]   Sun_angle= -7.9 [hr] (East of Sun)\nMOON_POSTN:       171.98d {+11h 27m 55s}   +3.10d {+03d 06' 09\"}\nMOON_DIST:        127.49 [deg]\nGAL_COORDS:        86.51, -6.48 [deg] galactic lon,lat of the event\nECL_COORDS:       343.78, 52.49 [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": "2025-10-18T11:12:42Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-10-18T11:12:45.260671Z",
                "modified": "2025-10-18T11:12:45.269372Z"
            }
        },
        {
            "id": 10981,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 5789309,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_GOLD",
                "uuid": "7d89f8a9-3089-439c-b2d9-df21e56803ff",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "0.2566 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/141495_22018019.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.9226e+02 [TeV]",
                    "src_ra": "321.3077d {+21h 25m 14s} (J2000),\n321.5651d {+21h 26m 16s} (current),\n320.8093d {+21h 23m 14s} (1950)",
                    "stream": "24",
                    "run_num": "141495",
                    "src_dec": "+39.1859d {+39d 11' 09\"} (J2000),\n+39.2982d {+39d 17' 53\"} (current),\n+38.9694d {+38d 58' 10\"} (1950)",
                    "comments": "IceCube Gold event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "0",
                    "sun_dist": "117.95 [deg]   Sun_angle= -7.9 [hr] (East of Sun)",
                    "event_num": "22018019",
                    "moon_dist": "129.24 [deg]",
                    "src_error": "161.22 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "203.24d {+13h 32m 57s}   -9.70d {-09d 42' 14\"}",
                    "ecl_coords": "342.29, 50.57 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "85.11, -8.10 [deg] galactic lon,lat of the event",
                    "moon_postn": "169.21d {+11h 16m 50s}   +4.60d {+04d 35' 58\"}",
                    "signalness": "6.0730e-01 [dn]",
                    "notice_date": "Sat 18 Oct 25 05:06:32 UT",
                    "notice_type": "ICECUBE Astrotrack Gold",
                    "src_error50": "62.80 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20966 TJD;   291 DOY;   25/10/18 (yy/mm/dd)",
                    "discovery_time": "18342 SOD {05:05:42.97} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Sat 18 Oct 25 05:06:32 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Gold \nSTREAM:           24\nRUN_NUM:          141495\nEVENT_NUM:        22018019\nSRC_RA:           321.3077d {+21h 25m 14s} (J2000),\n                  321.5651d {+21h 26m 16s} (current),\n                  320.8093d {+21h 23m 14s} (1950)\nSRC_DEC:          +39.1859d {+39d 11' 09\"} (J2000),\n                  +39.2982d {+39d 17' 53\"} (current),\n                  +38.9694d {+38d 58' 10\"} (1950)\nSRC_ERROR:        161.22 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      62.80 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20966 TJD;   291 DOY;   25/10/18 (yy/mm/dd)\nDISCOVERY_TIME:   18342 SOD {05:05:42.97} UT\nREVISION:         0\nENERGY:           1.9226e+02 [TeV]\nSIGNALNESS:       6.0730e-01 [dn]\nFAR:              0.2566 [yr^-1]\nSUN_POSTN:        203.24d {+13h 32m 57s}   -9.70d {-09d 42' 14\"}\nSUN_DIST:         117.95 [deg]   Sun_angle= -7.9 [hr] (East of Sun)\nMOON_POSTN:       169.21d {+11h 16m 50s}   +4.60d {+04d 35' 58\"}\nMOON_DIST:        129.24 [deg]\nGAL_COORDS:        85.11, -8.10 [deg] galactic lon,lat of the event\nECL_COORDS:       342.29, 50.57 [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": "2025-10-18T05:06:32Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-10-18T05:06:33.980721Z",
                "modified": "2025-10-18T05:06:33.990110Z"
            }
        },
        {
            "id": 10980,
            "sequence_number": 1,
            "sequence_type": "UPDATE",
            "message": {
                "id": 5788253,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "53737298-233d-4d83-ae9a-89a2f1199c8b",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "2.2259 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/141484_75492250.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.5700e+02 [TeV]",
                    "src_ra": "2.8100d {+00h 11m 14s} (J2000),\n3.1408d {+00h 12m 34s} (current),\n2.1689d {+00h 08m 41s} (1950)",
                    "stream": "25",
                    "run_num": "141484",
                    "src_dec": "+2.9100d {+02d 54' 36\"} (J2000),\n+3.0534d {+03d 03' 12\"} (current),\n+2.6319d {+02d 37' 55\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "1",
                    "sun_dist": "162.07 [deg]   Sun_angle= -10.9 [hr] (East of Sun)",
                    "event_num": "75492250",
                    "moon_dist": "123.93 [deg]",
                    "src_error": "29.24 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "200.30d {+13h 21m 12s}   -8.55d {-08d 33' 03\"}",
                    "ecl_coords": "3.73,  1.55 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "103.49,-58.44 [deg] galactic lon,lat of the event",
                    "moon_postn": "131.60d {+08h 46m 23s}  +21.51d {+21d 30' 40\"}",
                    "signalness": "3.8001e-01 [dn]",
                    "notice_date": "Wed 15 Oct 25 01:34:22 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "15.90 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20962 TJD;   287 DOY;   25/10/14 (yy/mm/dd)",
                    "discovery_time": "66791 SOD {18:33:11.58} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Wed 15 Oct 25 01:34:22 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          141484\nEVENT_NUM:        75492250\nSRC_RA:             2.8100d {+00h 11m 14s} (J2000),\n                    3.1408d {+00h 12m 34s} (current),\n                    2.1689d {+00h 08m 41s} (1950)\nSRC_DEC:           +2.9100d {+02d 54' 36\"} (J2000),\n                   +3.0534d {+03d 03' 12\"} (current),\n                   +2.6319d {+02d 37' 55\"} (1950)\nSRC_ERROR:        29.24 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      15.90 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20962 TJD;   287 DOY;   25/10/14 (yy/mm/dd)\nDISCOVERY_TIME:   66791 SOD {18:33:11.58} UT\nREVISION:         1\nENERGY:           1.5700e+02 [TeV]\nSIGNALNESS:       3.8001e-01 [dn]\nFAR:              2.2259 [yr^-1]\nSUN_POSTN:        200.30d {+13h 21m 12s}   -8.55d {-08d 33' 03\"}\nSUN_DIST:         162.07 [deg]   Sun_angle= -10.9 [hr] (East of Sun)\nMOON_POSTN:       131.60d {+08h 46m 23s}  +21.51d {+21d 30' 40\"}\nMOON_DIST:        123.93 [deg]\nGAL_COORDS:       103.49,-58.44 [deg] galactic lon,lat of the event\nECL_COORDS:         3.73,  1.55 [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": "2025-10-15T01:34:22Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-10-15T01:34:23.337045Z",
                "modified": "2025-10-15T01:34:23.344924Z"
            }
        },
        {
            "id": 10979,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 5788143,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "8ac9c4b8-59a0-4a06-90ee-6bd7719da14e",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "2.2259 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/141484_75492250.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.5700e+02 [TeV]",
                    "src_ra": "2.8968d {+00h 11m 35s} (J2000),\n3.2276d {+00h 12m 55s} (current),\n2.2557d {+00h 09m 01s} (1950)",
                    "stream": "25",
                    "run_num": "141484",
                    "src_dec": "+2.9117d {+02d 54' 42\"} (J2000),\n+3.0551d {+03d 03' 18\"} (current),\n+2.6336d {+02d 38' 01\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "0",
                    "sun_dist": "162.45 [deg]   Sun_angle= -10.9 [hr] (East of Sun)",
                    "event_num": "75492250",
                    "moon_dist": "119.98 [deg]",
                    "src_error": "30.80 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "200.03d {+13h 20m 06s}   -8.44d {-08d 26' 34\"}",
                    "ecl_coords": "3.82,  1.52 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "103.64,-58.46 [deg] galactic lon,lat of the event",
                    "moon_postn": "127.63d {+08h 30m 32s}  +22.75d {+22d 45' 01\"}",
                    "signalness": "3.8001e-01 [dn]",
                    "notice_date": "Tue 14 Oct 25 18:34:02 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "12.00 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20962 TJD;   287 DOY;   25/10/14 (yy/mm/dd)",
                    "discovery_time": "66791 SOD {18:33:11.58} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Tue 14 Oct 25 18:34:02 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          141484\nEVENT_NUM:        75492250\nSRC_RA:             2.8968d {+00h 11m 35s} (J2000),\n                    3.2276d {+00h 12m 55s} (current),\n                    2.2557d {+00h 09m 01s} (1950)\nSRC_DEC:           +2.9117d {+02d 54' 42\"} (J2000),\n                   +3.0551d {+03d 03' 18\"} (current),\n                   +2.6336d {+02d 38' 01\"} (1950)\nSRC_ERROR:        30.80 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      12.00 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20962 TJD;   287 DOY;   25/10/14 (yy/mm/dd)\nDISCOVERY_TIME:   66791 SOD {18:33:11.58} UT\nREVISION:         0\nENERGY:           1.5700e+02 [TeV]\nSIGNALNESS:       3.8001e-01 [dn]\nFAR:              2.2259 [yr^-1]\nSUN_POSTN:        200.03d {+13h 20m 06s}   -8.44d {-08d 26' 34\"}\nSUN_DIST:         162.45 [deg]   Sun_angle= -10.9 [hr] (East of Sun)\nMOON_POSTN:       127.63d {+08h 30m 32s}  +22.75d {+22d 45' 01\"}\nMOON_DIST:        119.98 [deg]\nGAL_COORDS:       103.64,-58.46 [deg] galactic lon,lat of the event\nECL_COORDS:         3.82,  1.52 [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": "2025-10-14T18:34:02Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-10-14T18:34:04.651366Z",
                "modified": "2025-10-14T18:34:04.667714Z"
            }
        },
        {
            "id": 10978,
            "sequence_number": 3,
            "sequence_type": "INITIAL",
            "message": {
                "id": 5788061,
                "topic": "igwn.gwalert",
                "uuid": "e52df3dd-dd0e-4bf8-a024-34acf234452b",
                "title": "S251014cn - INITIAL",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251014cn/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251014cn/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2025-10-14T11:33:23.373Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 52.91484153792279,
                        "area_90": 232.6417072819703,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "db9e0d744ab0d36a012c1db522b9d798",
                        "classification": {
                            "BBH": 0.9982042314734335,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.001795768526566488
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "INITIAL",
                    "sequence_num": 3,
                    "time_created": "2025-10-14T12:08:33Z",
                    "superevent_id": "S251014cn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-14T12:08:34.095192Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-14T12:08:34.095211Z",
                "modified": "2025-10-14T12:08:34.139057Z"
            }
        },
        {
            "id": 10977,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5788056,
                "topic": "igwn.gwalert",
                "uuid": "93ac48b9-1aa2-4564-84db-1d3de1223056",
                "title": "S251014cn - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251014cn/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251014cn/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2025-10-14T11:33:23.373Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 52.91484153792279,
                        "area_90": 232.6417072819703,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "db9e0d744ab0d36a012c1db522b9d798",
                        "classification": {
                            "BBH": 0.9982042314734335,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.001795768526566488
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-14T11:38:24Z",
                    "superevent_id": "S251014cn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-14T11:38:24.547238Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-14T11:38:24.547250Z",
                "modified": "2025-10-14T11:38:24.555831Z"
            }
        },
        {
            "id": 10976,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5788055,
                "topic": "igwn.gwalert",
                "uuid": "ed9edb4a-7b7a-4839-9402-7af0849ed14b",
                "title": "S251014cn - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251014cn/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251014cn/view/"
                    },
                    "event": {
                        "far": 3.623672849814917e-44,
                        "time": "2025-10-14T11:33:23.377Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 54.50163108590015,
                        "area_90": 237.20536647780605,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.01,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "9ca8ca6780a3290fcbdd5c6bad17b5c6",
                        "classification": {
                            "BBH": 1.0,
                            "BNS": 2.9095750477763796e-109,
                            "NSBH": 2.6227783475393e-107,
                            "Terrestrial": 0.0
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-10-14T11:33:48Z",
                    "superevent_id": "S251014cn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-14T11:33:48.668152Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-14T11:33:48.668163Z",
                "modified": "2025-10-14T11:33:48.684093Z"
            }
        },
        {
            "id": 10975,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5788051,
                "topic": "igwn.gwalert",
                "uuid": "1bd25f7a-2621-4a7a-9959-c4ad1e62e949",
                "title": "S251014ck - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
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