S240426s S240426s
Event ID: GW240426_031451 Trigger ID: S240426s cbc-workflow-er16-o4b
Current version: 327b059a
recorded 2026-07-28 13:42 UTC
v3
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Selected version 26498234. Compared with previous version c483d342.
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Changes from previous version c483d342 to selected version 26498234
Change legend: Added exists only in the selected version; Removed exists only in the baseline; Changed has different values.
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https://gracedb.ligo.org/api/events/G477707/files/bayestar.multiorder.fits- Selected
https://gracedb.ligo.org/api/events/G477714/files/cwb.multiorder.fits
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https://gracedb.ligo.org/api/events/G477707/files/mbta.p_astro.json- Selected
https://gracedb.ligo.org/api/events/G477714/files/cwb.p_astro.json
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https://gracedb.ligo.org/api/events/G603903/files/bayestar.multiorder.fits
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G603903
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https://gracedb.ligo.org/api/events/G602261/files/coinc.xml- Selected
https://gracedb.ligo.org/api/events/G603903/files/coinc.xml
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https://gracedb.ligo.org/api/events/G602261/files/coinc.xml
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85.818723
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CWB- Selected
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low latency- Selected
offline
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https://gracedb.ligo.org/api/events/G477714/files/cwb.multiorder.fits- Selected
https://gracedb.ligo.org/api/events/G611861/files/bayestar.multiorder.fits
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https://gracedb.ligo.org/api/events/G477714/files/cwb.p_astro.json- Selected
https://gracedb.ligo.org/api/events/G611861/files/mbta.p_astro.json
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G477714- Selected
G611861
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https://gracedb.ligo.org/api/events/G611861/files/coinc.xml
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GraceDB › LastUpdate
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2025-09-26 12:42:46.795397- Selected
2025-10-25 12:32:32.678286
View raw JSON diff
Technical inspection aid only. The semantic summary above remains authoritative.
Baseline c483d342
{"Info": {"Notes": [], "Labels": [], "SchemaVersion": "v3"}, "Sname": "S240426s", "GraceDB": {"ADVOK": true, "Events": [{"FAR": 6.487594e-07, "UID": "G477707", "XML": "https://gracedb.ligo.org/api/events/G477707/files/coinc.xml", "Pbbh": 0.654420345, "Pbns": 0.0, "H1SNR": 6.454498, "HasNS": 0.0, "L1SNR": 7.428156, "Mass1": 85.818723, "Mass2": 4.472343, "Notes": [], "Pnsbh": 0.0, "State": "neighbor", "Pastro": 0.654420345, "Skymap": "https://gracedb.ligo.org/api/events/G477707/files/bayestar.multiorder.fits", "Spin1z": -0.909643, "Spin2z": -0.909643, "GPSTime": 1398136509.962995, "Pipeline": "MBTA", "HasMassGap": 0.018240165631469976, "HasRemnant": 0.0, "NetworkSNR": 9.840632, "SearchType": "low latency", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 3, "InOfflineCatalog": true, "SourceClassification": "https://gracedb.ligo.org/api/events/G477707/files/mbta.p_astro.json"}, {"FAR": 3.147218342748033e-11, "UID": "G602261", "XML": "https://gracedb.ligo.org/api/events/G602261/files/coinc.xml", "H1SNR": 5.8492036, "HasNS": 0.0, "L1SNR": 7.3143911, "Mass1": 76.482292, "Mass2": 67.469643, "Notes": [], "State": "neighbor", "Spin1z": 0.13921875, "Spin2z": 0.13921875, "GPSTime": 1398136509.983825, "Pipeline": "gstlal", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 9.365548584579296, "SearchType": "offline", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 3, "InOfflineCatalog": true}, {"FAR": 1.212771281495001e-12, "UID": "G603903", "XML": "https://gracedb.ligo.org/api/events/G603903/files/coinc.xml", "H1SNR": 6.2874465, "HasNS": 0.0, "L1SNR": 7.5530601, "Mass1": 74.298569, "Mass2": 69.635696, "Notes": [], "State": "neighbor", "Skymap": "https://gracedb.ligo.org/api/events/G603903/files/bayestar.multiorder.fits", "Spin1z": 0.066998087, "Spin2z": 0.066998087, "GPSTime": 1398136509.966309, "Pipeline": "pycbc", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 9.827547998725942, "SearchType": "offline", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 3, "InOfflineCatalog": true}, {"FAR": 1.19844e-10, "UID": "G477714", "Pbbh": 0.9881669261881544, "Pbns": 0.0, "H1SNR": 31.35117, "L1SNR": 73.26356, "Notes": [], "Pnsbh": 0.0, "State": "neighbor", "Pastro": 0.9881669261881544, "Skymap": "https://gracedb.ligo.org/api/events/G477714/files/cwb.multiorder.fits", "GPSTime": 1398136509.9922, "Pipeline": "CWB", "NetworkSNR": 10.228132771918832, "SearchType": "low latency", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 3, "InOfflineCatalog": true, "SourceClassification": "https://gracedb.ligo.org/api/events/G477714/files/cwb.p_astro.json"}, {"FAR": 7.602110021385242e-09, "UID": "G477712", "XML": "https://gracedb.ligo.org/api/events/G477712/files/coinc.xml", "Pbbh": 0.9826443572904631, "Pbns": 0.0, "H1SNR": 6.2413898, "HasNS": 0.0, "L1SNR": 7.9211502, "Mass1": 86.765393, "Mass2": 4.8373638, "Notes": [], "Pnsbh": 0.0, "State": "preferred", "Pastro": 0.9826443572904631, "Skymap": "https://gracedb.ligo.org/api/events/G477712/files/bayestar.multiorder.fits", "Spin1z": -0.88405852, "Spin2z": 0.12900642, "GPSTime": 1398136509.975098, "Pipeline": "pycbc", "HasMassGap": 0.029943639291465377, "HasRemnant": 0.0, "NetworkSNR": 10.08462030219265, "SearchType": "low latency", "EarlyWarning": false, "InOfflineCatalog": false, "SourceClassification": "https://gracedb.ligo.org/api/events/G477712/files/pycbc.p_astro.json"}], "LastUpdate": "2025-09-26 12:42:46.795397", "Instruments": "H1,L1", "SupereventFAR": 1.19844e-10, "SupereventPastro": 0.9980935356169508}, "Lensing": {"SingletAnalyses": {}, "MultipletAnalyses": {}}, "Cosmology": {"Notes": [], "Counterparts": [], "PreferredLowLatencySkymap": "https://gracedb.ligo.org/api/events/G477712/files/bayestar.multiorder.fits", "CosmologyRunsUsingThisSuperevent": []}, "TestingGR": {"Notes": [], "BHMAnalyses": [], "FTIAnalyses": [], "MDRAnalyses": [], "POLAnalyses": [], "SIMAnalyses": [], "SMAAnalyses": [], "SSBAnalyses": [], "LOSAAnalyses": [], "IMRCTAnalyses": [], "TIGERAnalyses": [], "PCATGRAnalyses": [], "PYRINGAnalyses": [], "PSEOBRDAnalyses": [], "EchoesCWBAnalyses": [], "ResidualsAnalyses": [], "ModeledEchoesAnalyses": [], "UnmodeledEchoesAnalyses": [], "QNMRationalFilterAnalyses": []}, "Publications": {"Papers": []}, "ExtremeMatter": {"Analyses": []}, "CatalogTracking": {"Notes": [], "SearchResultStatuses": [{"UID": "MBTA", "Chunk": 0, "Notes": [], "Finalized": false, "ReviewStatus": "unstarted"}, {"UID": "gstlal", "Chunk": 0, "Notes": [], "Finalized": false, "ReviewStatus": "unstarted"}, {"UID": "pycbc", "Chunk": 0, "Notes": [], "Finalized": false, "ReviewStatus": "unstarted"}, {"UID": "CWB", "Chunk": 0, "Notes": [], "Finalized": false, "ReviewStatus": "unstarted"}], "ParameterEstimationStatuses": [{"UID": "IMRPhenomXPHM", "Notes": ["No production results satisfying request available, using best rota analysis instead"], "Finalized": false, "ReviewStatus": "pass", "CorrespondingPEUID": "Exp1", "IsDesignatedIllustrativeResult": true}]}, "ParameterEstimation": {"Notes": ["Generic relatively high-mass BBH"], "Status": "ongoing", "Results": [{"UID": "online", "Notes": ["Results copied from /home/pe.o4/O4b/S240426s/online/bilby", "Automatic online PE run succeeded", "Railing in chirp mass", "When this file is updated add the contents as a comment on the relevant git issue.", "Instructions can be found [here](https://git.ligo.org/pe/O4/o4b-rota/-/wikis/Review-instructions).", "Perform a review of the online result and assess if it is sufficent for sending a skymap."], "RunStatus": "complete", "ConfigFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/online/bilby/G477712_config_complete.ini", "MD5Sum": "0014fc2c884fdcfb0be6a6fe23889476", "DateLastModified": "2024/04/25 20:21:00"}, "Deprecated": false, "ResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/online/bilby/final_result/G477712_data0_1398136509-9750977_analysis_H1L1_merge_result.hdf5", "MD5Sum": "44c343bd6c6dff679d9a082cad815d6d", "DateLastModified": "2024/04/26 05:30:51"}, "Publications": [], "ReviewStatus": "ongoing", "PESummaryPageURL": "https://ldas-jobs.ligo.caltech.edu/~pe.o4/O4b/S240426s/online/summary/home.html", "InferenceSoftware": "bilby", "PESummaryResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/online/summary/samples/posterior_samples.h5", "MD5Sum": "fbd773296928881a92b57cee8fe9a1f0", "DateLastModified": "2024/04/26 06:21:16"}, "WaveformApproximant": "IMRPhenomXPHM"}, {"UID": "Exp0", "Notes": ["Railing in chirp mass", "Results copied from /home/pe.o4/O4b/S240426s/online/bilby", "Automatic online PE run succeeded", "Rerun of the online PE with 16s ROQ for wider chirp mass prior", "Still Railing in chirp mass"], "RunStatus": "complete", "ConfigFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/Exp0/bilby/Exp0_config_complete.ini", "MD5Sum": "09068c9e18ca55bd570743b0df5df7c4", "DateLastModified": "2024/04/26 11:31:17"}, "Deprecated": true, "ResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/Exp0/bilby/final_result/Exp0_data0_1398136509-9750977_analysis_H1L1_merge_result.hdf5", "MD5Sum": "e921f4f701a87a6d1c7fe463acc5cf6a", "DateLastModified": "2024/04/27 14:55:39"}, "Publications": [], "ReviewStatus": "fail", "PESummaryPageURL": "https://ldas-jobs.ligo.caltech.edu/~pe.o4/O4b/S240426s/Exp0/summary/home.html", "InferenceSoftware": "bilby", "PESummaryResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/Exp0/summary/samples/posterior_samples.h5", "MD5Sum": "586bc232f077e07035d40b53ea2021a1", "DateLastModified": "2024/04/27 21:20:02"}, "WaveformApproximant": "IMRPhenomXPHM"}, {"UID": "Exp1", "Notes": ["Rerun of the online PE with MBGravitationalWaveTransient likelihood method and for wider chirp mass prior.", "Chirp mass 1D marginalised posterior converges without railing."], "RunStatus": "complete", "ConfigFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/Exp1/bilby/Exp1_config_complete.ini", "MD5Sum": "8f890ad937561fdbcd1004d544cf2ffb", "DateLastModified": "2024/04/28 16:13:34"}, "Deprecated": false, "ResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/Exp1/bilby/final_result/Exp1_data0_1398136509-9750977_analysis_H1L1_merge_result.hdf5", "MD5Sum": "79747ca42f65190c6f20d43a941fda81", "DateLastModified": "2024/04/28 18:00:17"}, "Publications": [], "ReviewStatus": "pass", "PESummaryPageURL": "https://ldas-jobs.ligo.caltech.edu/~pe.o4/O4b/S240426s/Exp1/summary/home.html", "InferenceSoftware": "bilby", "PESummaryResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240426s/Exp1/summary/samples/posterior_samples.h5", "MD5Sum": "ebee3cf4978cbe1c5b1eed63ab784311", "DateLastModified": "2024/04/29 09:19:34"}, "WaveformApproximant": "IMRPhenomXPHM"}], "Analysts": ["anuj.mishra", "sylvia.biscoveanu"], "Reviewers": ["anuj.mishra", "sylvia.biscoveanu"], "SafeSamplingRate": 4096.0, "IllustrativeResult": "Exp1", "SafeLowerMassRatio": 0.05, "SkymapReleaseResult": "Exp1"}, "RatesAndPopulations": {"RnPRunsUsingThisSuperevent": []}, "DetectorCharacterization": {"Notes": [""], "Status": "complete", "Analysts": ["Dishari Malakar", "dishari.malakar@ligo.org", "Derek Davis", "derek.davis@ligo.org", "Sophie Hourihane", "sophie.hourihane@ligo.org", "Laura Nuttall", "laura.nuttall@port.ac.uk", "Francesco Di Renzo", "f.di-renzo@ip2i.in2p3.fr", "Siddharth Soni", "siddharth.soni@ligo.org"], "Reviewers": ["Laura Nuttall", "laura.nuttall@port.ac.uk"], "DQRResults": [{"UID": " ", "Notes": [""], "DQRFile": {"Path": "CIT:/home/dqr/public_html/o4dqr/online/events/202404/S240426s/index.html", "MD5Sum": "af21ffdcc1cb57cb995a5b483dd2fbbb", "PublicHTML": "https://ldas-jobs.ligo.caltech.edu/~dqr/o4dqr/online/events/202404/S240426s/index.html", "DateLastModified": "2024/05/06 09:17:18"}, "ReviewStatus": "pass", "ValidationNotes": [""], "ValidationResult": "pass"}], "RecommendedDuration": 8.0, "RecommendedDetectors": [{"UID": "H1", "Notes": ["The Detchar Glitchfind task identified a glitch in L1 ~1 sec before the merger. Glitch subtraction was attempted and did not work. The glitch is low SNR and does not overlap the signal, it should not interfere with PE. Please come back to Detchar if there are issues."], "FrameType": "H1_HOFT_AR01", "RecommendedChannel": "H1:DCS-CALIB_STRAIN_CLEAN_AR01 ", "GlitchMitigationStatus": "not required", "RecommendedMinimumFrequency": 20}, {"UID": "L1", "Notes": ["The Detchar Glitchfind task identified a glitch in L1 ~1 sec before the merger. Glitch subtraction was attempted and did not work. The glitch is low SNR and does not overlap the signal, it should not interfere with PE. Please come back to Detchar if there are issues."], "FrameType": "L1_HOFT_AR01", "RecommendedChannel": "L1:DCS-CALIB_STRAIN_CLEAN_AR01", "GlitchMitigationStatus": "not required", "RecommendedMinimumFrequency": 20}], "ParticipatingDetectors": ["H1", "L1"]}}
Selected 26498234
{"Info": {"Notes": [], "Labels": [], "SchemaVersion": "v3"}, "Sname": "S240426s", "GraceDB": {"ADVOK": true, "Events": [{"FAR": 1.19844e-10, "UID": "G477714", "Pbbh": 0.9881669261881544, "Pbns": 0.0, "H1SNR": 31.35117, "L1SNR": 73.26356, "Notes": [], "Pnsbh": 0.0, "State": "neighbor", "Pastro": 0.9881669261881544, "Skymap": "https://gracedb.ligo.org/api/events/G477714/files/cwb.multiorder.fits", "GPSTime": 1398136509.9922, "Pipeline": "CWB", "NetworkSNR": 10.228132771918832, "SearchType": "low latency", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 4, "InOfflineCatalog": true, "SourceClassification": "https://gracedb.ligo.org/api/events/G477714/files/cwb.p_astro.json"}, {"FAR": 1.212771281495001e-12, "UID": "G603903", "XML": "https://gracedb.ligo.org/api/events/G603903/files/coinc.xml", "H1SNR": 6.2874465, "HasNS": 0.0, "L1SNR": 7.5530601, "Mass1": 74.298569, "Mass2": 69.635696, "Notes": [], "State": "neighbor", "Skymap": 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"sylvia.biscoveanu"], "Reviewers": ["anuj.mishra", "sylvia.biscoveanu"], "SafeSamplingRate": 4096.0, "IllustrativeResult": "Exp1", "SafeLowerMassRatio": 0.05, "SkymapReleaseResult": "Exp1"}, "RatesAndPopulations": {"RnPRunsUsingThisSuperevent": []}, "DetectorCharacterization": {"Notes": [""], "Status": "complete", "Analysts": ["Dishari Malakar", "dishari.malakar@ligo.org", "Derek Davis", "derek.davis@ligo.org", "Sophie Hourihane", "sophie.hourihane@ligo.org", "Laura Nuttall", "laura.nuttall@port.ac.uk", "Francesco Di Renzo", "f.di-renzo@ip2i.in2p3.fr", "Siddharth Soni", "siddharth.soni@ligo.org"], "Reviewers": ["Laura Nuttall", "laura.nuttall@port.ac.uk"], "DQRResults": [{"UID": " ", "Notes": [""], "DQRFile": {"Path": "CIT:/home/dqr/public_html/o4dqr/online/events/202404/S240426s/index.html", "MD5Sum": "af21ffdcc1cb57cb995a5b483dd2fbbb", "PublicHTML": "https://ldas-jobs.ligo.caltech.edu/~dqr/o4dqr/online/events/202404/S240426s/index.html", "DateLastModified": "2024/05/06 09:17:18"}, "ReviewStatus": "pass", "ValidationNotes": [""], "ValidationResult": "pass"}], "RecommendedDuration": 8.0, "RecommendedDetectors": [{"UID": "H1", "Notes": ["The Detchar Glitchfind task identified a glitch in L1 ~1 sec before the merger. Glitch subtraction was attempted and did not work. The glitch is low SNR and does not overlap the signal, it should not interfere with PE. Please come back to Detchar if there are issues."], "FrameType": "H1_HOFT_AR01", "RecommendedChannel": "H1:DCS-CALIB_STRAIN_CLEAN_AR01 ", "GlitchMitigationStatus": "not required", "RecommendedMinimumFrequency": 20}, {"UID": "L1", "Notes": ["The Detchar Glitchfind task identified a glitch in L1 ~1 sec before the merger. Glitch subtraction was attempted and did not work. The glitch is low SNR and does not overlap the signal, it should not interfere with PE. Please come back to Detchar if there are issues."], "FrameType": "L1_HOFT_AR01", "RecommendedChannel": "L1:DCS-CALIB_STRAIN_CLEAN_AR01", "GlitchMitigationStatus": "not required", "RecommendedMinimumFrequency": 20}], "ParticipatingDetectors": ["H1", "L1"]}}