S240420dc S240420dc
Event ID: GW240420_175625 Trigger ID: S240420dc cbc-workflow-er16-o4b
Current version: 327b059a
recorded 2026-07-28 13:42 UTC
v3
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Selected version df355ab8. Compared with previous version 6325640d.
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Changes from previous version 6325640d to selected version df355ab8
Change legend: Added exists only in the selected version; Removed exists only in the baseline; Changed has different values.
27 field changes.
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Changed
GraceDB › Events › 0 › CatalogVersion
- Baseline
8- Selected
14
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Changed
GraceDB › Events › 0 › FAR
- Baseline
0.000009468305434666178- Selected
0.000000002473542926040295
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GraceDB › Events › 0 › GPSTime
- Baseline
1397671003.523274- Selected
1397671003.518066
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GraceDB › Events › 0 › H1SNR
- Baseline
10.019783- Selected
9.9421492
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Changed
GraceDB › Events › 0 › Mass1
- Baseline
46.318119- Selected
43.750957
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GraceDB › Events › 0 › Mass2
- Baseline
29.247704- Selected
36.719402
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GraceDB › Events › 0 › NetworkSNR
- Baseline
10.01978302001953- Selected
9.94214916229248
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GraceDB › Events › 0 › Pipeline
- Baseline
gstlal- Selected
pycbc
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GraceDB › Events › 0 › Skymap
- Baseline
- Missing
- Selected
https://gracedb.ligo.org/api/events/G603881/files/bayestar.multiorder.fits
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GraceDB › Events › 0 › Spin1z
- Baseline
-0.077343747- Selected
0.14728463
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GraceDB › Events › 0 › Spin2z
- Baseline
-0.077343747- Selected
0.14728463
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GraceDB › Events › 0 › UID
- Baseline
G620080- Selected
G603881
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GraceDB › Events › 0 › XML
- Baseline
https://gracedb.ligo.org/api/events/G620080/files/coinc.xml- Selected
https://gracedb.ligo.org/api/events/G603881/files/coinc.xml
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Changed
GraceDB › Events › 1 › CatalogVersion
- Baseline
8- Selected
14
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Changed
GraceDB › Events › 1 › FAR
- Baseline
0.000000002473542926040295- Selected
0.000009468305434666178
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Changed
GraceDB › Events › 1 › GPSTime
- Baseline
1397671003.518066- Selected
1397671003.523274
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Changed
GraceDB › Events › 1 › H1SNR
- Baseline
9.9421492- Selected
10.019783
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Changed
GraceDB › Events › 1 › Mass1
- Baseline
43.750957- Selected
46.318119
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Changed
GraceDB › Events › 1 › Mass2
- Baseline
36.719402- Selected
29.247704
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Changed
GraceDB › Events › 1 › NetworkSNR
- Baseline
9.94214916229248- Selected
10.01978302001953
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Changed
GraceDB › Events › 1 › Pipeline
- Baseline
pycbc- Selected
gstlal
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Removed
GraceDB › Events › 1 › Skymap
- Baseline
https://gracedb.ligo.org/api/events/G603881/files/bayestar.multiorder.fits- Selected
- Missing
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Changed
GraceDB › Events › 1 › Spin1z
- Baseline
0.14728463- Selected
-0.077343747
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Changed
GraceDB › Events › 1 › Spin2z
- Baseline
0.14728463- Selected
-0.077343747
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Changed
GraceDB › Events › 1 › UID
- Baseline
G603881- Selected
G620080
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Changed
GraceDB › Events › 1 › XML
- Baseline
https://gracedb.ligo.org/api/events/G603881/files/coinc.xml- Selected
https://gracedb.ligo.org/api/events/G620080/files/coinc.xml
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Changed
GraceDB › LastUpdate
- Baseline
2025-12-11 20:37:06.193125- Selected
2025-12-16 06:35:41.097775
View raw JSON diff
Technical inspection aid only. The semantic summary above remains authoritative.
Baseline 6325640d
{"Info": {"Notes": [], "Labels": [], "SchemaVersion": "v3"}, "Sname": "S240420dc", "GraceDB": {"ADVOK": true, "Events": [{"FAR": 9.468305434666178e-06, "UID": "G620080", "XML": "https://gracedb.ligo.org/api/events/G620080/files/coinc.xml", "H1SNR": 10.019783, "HasNS": 0.0, "Mass1": 46.318119, "Mass2": 29.247704, "Notes": [], "State": "neighbor", "Spin1z": -0.077343747, "Spin2z": -0.077343747, "GPSTime": 1397671003.523274, "Pipeline": "gstlal", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 10.01978302001953, "SearchType": "offline", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 8, "InOfflineCatalog": true}, {"FAR": 2.473542926040295e-09, "UID": "G603881", "XML": "https://gracedb.ligo.org/api/events/G603881/files/coinc.xml", "H1SNR": 9.9421492, "HasNS": 0.0, "Mass1": 43.750957, "Mass2": 36.719402, "Notes": [], "State": "neighbor", "Skymap": "https://gracedb.ligo.org/api/events/G603881/files/bayestar.multiorder.fits", "Spin1z": 0.14728463, "Spin2z": 0.14728463, "GPSTime": 1397671003.518066, "Pipeline": "pycbc", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 9.94214916229248, "SearchType": "offline", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 8, "InOfflineCatalog": true}, {"FAR": 2.360739563238057e-07, "UID": "G476148", "XML": "https://gracedb.ligo.org/api/events/G476148/files/coinc.xml", "Pbbh": 0.8869423459952187, "Pbns": 5.917433784050038e-23, "H1SNR": 10.122824, "HasNS": 0.0, "Mass1": 47.792971, "Mass2": 26.346, "Notes": [], "Pnsbh": 4.13753132274836e-21, "State": "preferred", "Pastro": 0.8869423459952187, "Skymap": "https://gracedb.ligo.org/api/events/G476148/files/bayestar.multiorder.fits", "Spin1z": -0.20109375, "Spin2z": -0.20109375, "GPSTime": 1397671003.521484, "Pipeline": "gstlal", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 10.12282371520996, "SearchType": "low latency", "EarlyWarning": false, "InOfflineCatalog": false, "SourceClassification": "https://gracedb.ligo.org/api/events/G476148/files/gstlal.p_astro.json"}], "LastUpdate": "2025-12-11 20:37:06.193125", "Instruments": "H1", "SupereventFAR": 9.844685866280332e-06}, "Lensing": {"SingletAnalyses": {}, "MultipletAnalyses": {}}, "Cosmology": {"Notes": [], "Counterparts": [], "PreferredLowLatencySkymap": "https://gracedb.ligo.org/api/events/G476148/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": "pycbc", "Chunk": 0, "Notes": [], "Finalized": false, "ReviewStatus": "unstarted"}, {"UID": "gstlal", "Chunk": 0, "Notes": [], "Finalized": false, "ReviewStatus": "unstarted"}], "ParameterEstimationStatuses": []}, "ParameterEstimation": {"Notes": [], "Status": "ongoing", "Results": [{"UID": "Exp0", "Notes": ["Manual online-style run", "H1-only BBH"], "RunStatus": "complete", "ConfigFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240420dc/Exp0/bilby/G476148_config_complete.ini", "MD5Sum": "6cb6f0c2aa460771e3f4179b49b26362", "DateLastModified": "2025/12/02 07:55:16"}, "Deprecated": false, "ResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240420dc/Exp0/bilby/final_result/G476148_data0_1397671003-5214844_analysis_H1_merge_result.hdf5", "MD5Sum": "2dcc653ee605a367226edcde9abc0b47", "DateLastModified": "2025/12/03 15:09:31"}, "Publications": [], "ReviewStatus": "unstarted", "PESummaryPageURL": "https://ldas-jobs.ligo.caltech.edu/~pe.o4/O4b/S240420dc/Exp0/summary/home.html", "InferenceSoftware": "bilby", "PESummaryResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240420dc/Exp0/summary/samples/posterior_samples.h5", "MD5Sum": "468feeebefdc1a364981aa4da6149c02", "DateLastModified": "2025/12/08 02:00:38"}, "WaveformApproximant": "IMRPhenomXPHM"}], "Analysts": [], "Reviewers": [], "SafeSamplingRate": 4096.0, "IllustrativeResult": "Exp0", "SafeLowerMassRatio": 0.05, "SkymapReleaseResult": "N/A"}, "RatesAndPopulations": {"RnPRunsUsingThisSuperevent": []}, "DetectorCharacterization": {"Notes": [""], "Status": "complete", "Analysts": ["Dishari Malakar", "dishari.malakar@ligo.org", "Jess McIver", "jess.mciver@ligo.org", "Sophie Bini", "bini@caltech.edu", "Laura Nuttall", "laura.nuttall@port.ac.uk", "Francesco Di Renzo", "francesco.direnzo@ego-gw.it", "Dishari Malakar", "dishari.malakar@ligo.org"], "Reviewers": ["Laura Nuttall", "laura.nuttall@port.ac.uk"], "DQRResults": [{"UID": " ", "Notes": [""], "DQRFile": {"Path": "CIT:/home/dqr/public_html/o4dqr/online/events/202404/S240420dc/index.html", "MD5Sum": "d295dd49184849b959802b1e321268b1", "PublicHTML": "https://ldas-jobs.ligo.caltech.edu/~dqr/o4dqr/online/events/202404/S240420dc/index.html", "DateLastModified": "2025/11/20 17:26:28"}, "ReviewStatus": "pass", "ValidationNotes": [""], "ValidationResult": "fail"}], "RecommendedDuration": 8.0, "RecommendedDetectors": [{"UID": "H1", "Notes": [""], "FrameType": "H1_HOFT_AR01", "RecommendedChannel": "H1:DCS-CALIB_STRAIN_CLEAN_AR01 ", "GlitchMitigationStatus": "not required", "RecommendedMinimumFrequency": 20}], "ParticipatingDetectors": ["H1"]}}
Selected df355ab8
{"Info": {"Notes": [], "Labels": [], "SchemaVersion": "v3"}, "Sname": "S240420dc", "GraceDB": {"ADVOK": true, "Events": [{"FAR": 2.473542926040295e-09, "UID": "G603881", "XML": "https://gracedb.ligo.org/api/events/G603881/files/coinc.xml", "H1SNR": 9.9421492, "HasNS": 0.0, "Mass1": 43.750957, "Mass2": 36.719402, "Notes": [], "State": "neighbor", "Skymap": "https://gracedb.ligo.org/api/events/G603881/files/bayestar.multiorder.fits", "Spin1z": 0.14728463, "Spin2z": 0.14728463, "GPSTime": 1397671003.518066, "Pipeline": "pycbc", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 9.94214916229248, "SearchType": "offline", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 14, "InOfflineCatalog": true}, {"FAR": 9.468305434666178e-06, "UID": "G620080", "XML": "https://gracedb.ligo.org/api/events/G620080/files/coinc.xml", "H1SNR": 10.019783, "HasNS": 0.0, "Mass1": 46.318119, "Mass2": 29.247704, "Notes": [], "State": "neighbor", "Spin1z": -0.077343747, "Spin2z": -0.077343747, 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[{"UID": "pycbc", "Chunk": 0, "Notes": [], "Finalized": false, "ReviewStatus": "unstarted"}, {"UID": "gstlal", "Chunk": 0, "Notes": [], "Finalized": false, "ReviewStatus": "unstarted"}], "ParameterEstimationStatuses": []}, "ParameterEstimation": {"Notes": [], "Status": "ongoing", "Results": [{"UID": "Exp0", "Notes": ["Manual online-style run", "H1-only BBH"], "RunStatus": "complete", "ConfigFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240420dc/Exp0/bilby/G476148_config_complete.ini", "MD5Sum": "6cb6f0c2aa460771e3f4179b49b26362", "DateLastModified": "2025/12/02 07:55:16"}, "Deprecated": false, "ResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240420dc/Exp0/bilby/final_result/G476148_data0_1397671003-5214844_analysis_H1_merge_result.hdf5", "MD5Sum": "2dcc653ee605a367226edcde9abc0b47", "DateLastModified": "2025/12/03 15:09:31"}, "Publications": [], "ReviewStatus": "unstarted", "PESummaryPageURL": "https://ldas-jobs.ligo.caltech.edu/~pe.o4/O4b/S240420dc/Exp0/summary/home.html", "InferenceSoftware": "bilby", "PESummaryResultFile": {"Path": "CIT:/home/pe.o4/public_html/O4b/S240420dc/Exp0/summary/samples/posterior_samples.h5", "MD5Sum": "468feeebefdc1a364981aa4da6149c02", "DateLastModified": "2025/12/08 02:00:38"}, "WaveformApproximant": "IMRPhenomXPHM"}], "Analysts": [], "Reviewers": [], "SafeSamplingRate": 4096.0, "IllustrativeResult": "Exp0", "SafeLowerMassRatio": 0.05, "SkymapReleaseResult": "N/A"}, "RatesAndPopulations": {"RnPRunsUsingThisSuperevent": []}, "DetectorCharacterization": {"Notes": [""], "Status": "complete", "Analysts": ["Dishari Malakar", "dishari.malakar@ligo.org", "Jess McIver", "jess.mciver@ligo.org", "Sophie Bini", "bini@caltech.edu", "Laura Nuttall", "laura.nuttall@port.ac.uk", "Francesco Di Renzo", "francesco.direnzo@ego-gw.it", "Dishari Malakar", "dishari.malakar@ligo.org"], "Reviewers": ["Laura Nuttall", "laura.nuttall@port.ac.uk"], "DQRResults": [{"UID": " ", "Notes": [""], "DQRFile": {"Path": 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