S240531aa

Event ID: GW240531_040326 Trigger ID: S240531aa cbc-workflow-er16-o4b

Current version: 327b059a recorded 2026-07-28 13:42 UTC v3

The cached copy of the current version is shown. Refresh

History

Version history

Showing cached copy.

Viewing version 3302c6e9 (historical) — not the current record

Selected version details

Changes from previous version f79ffe4c to selected version 3302c6e9

Change legend: Added exists only in the selected version; Removed exists only in the baseline; Changed has different values.

40 field changes.

Changed GraceDB › Events › 0 › CatalogVersion

Baseline

2

Selected

3
Changed GraceDB › Events › 0 › FAR

Baseline

0.00000005064588566569377

Selected

0.00000002753399431116607
Changed GraceDB › Events › 0 › GPSTime

Baseline

1401163424.554581

Selected

1401163424.550537
Changed GraceDB › Events › 0 › H1SNR

Baseline

7.529521

Selected

7.1597223
Changed GraceDB › Events › 0 › HasMassGap

Baseline

0.0

Selected

0.005275362318840579
Changed GraceDB › Events › 0 › L1SNR

Baseline

4.4499578

Selected

5.0148578
Changed GraceDB › Events › 0 › Mass1

Baseline

28.050522

Selected

29.849068
Changed GraceDB › Events › 0 › Mass2

Baseline

23.732178

Selected

20.515491
Changed GraceDB › Events › 0 › NetworkSNR

Baseline

9.139559714671687

Selected

8.741305523784774
Changed GraceDB › Events › 0 › Pipeline

Baseline

gstlal

Selected

pycbc
Added GraceDB › Events › 0 › Skymap

Baseline

Missing

Selected

https://gracedb.ligo.org/api/events/G603948/files/bayestar.multiorder.fits
Changed GraceDB › Events › 0 › Spin1z

Baseline

0.21656249

Selected

0.09249603
Changed GraceDB › Events › 0 › Spin2z

Baseline

0.21656249

Selected

0.09249603
Changed GraceDB › Events › 0 › UID

Baseline

G602483

Selected

G603948
Changed GraceDB › Events › 0 › XML

Baseline

https://gracedb.ligo.org/api/events/G602483/files/coinc.xml

Selected

https://gracedb.ligo.org/api/events/G603948/files/coinc.xml
Added GraceDB › Events › 1 › CatalogNumber

Baseline

Missing

Selected

5
Added GraceDB › Events › 1 › CatalogVersion

Baseline

Missing

Selected

3
Changed GraceDB › Events › 1 › FAR

Baseline

0.0000001824682364985044

Selected

0.00000005064588566569377
Changed GraceDB › Events › 1 › GPSTime

Baseline

1401163424.553467

Selected

1401163424.554581
Changed GraceDB › Events › 1 › H1SNR

Baseline

7.6569505

Selected

7.529521
Changed GraceDB › Events › 1 › InOfflineCatalog

Baseline

False

Selected

True
Changed GraceDB › Events › 1 › L1SNR

Baseline

4.714335

Selected

4.4499578
Changed GraceDB › Events › 1 › Mass1

Baseline

25.532983

Selected

28.050522
Changed GraceDB › Events › 1 › Mass2

Baseline

26.346

Selected

23.732178
Changed GraceDB › Events › 1 › NetworkSNR

Baseline

9.369994571697736

Selected

9.139559714671687
Removed GraceDB › Events › 1 › Pastro

Baseline

0.9048708539447597

Selected

Missing
Removed GraceDB › Events › 1 › Pbbh

Baseline

0.9048708539447587

Selected

Missing
Removed GraceDB › Events › 1 › Pbns

Baseline

0.00000000000000001415105057172829

Selected

Missing
Removed GraceDB › Events › 1 › Pnsbh

Baseline

0.0000000000000009649258593942643

Selected

Missing
Changed GraceDB › Events › 1 › SearchType

Baseline

low latency

Selected

offline
Removed GraceDB › Events › 1 › Skymap

Baseline

https://gracedb.ligo.org/api/events/G488572/files/bayestar.multiorder.fits

Selected

Missing
Removed GraceDB › Events › 1 › SourceClassification

Baseline

https://gracedb.ligo.org/api/events/G488572/files/gstlal.p_astro.json

Selected

Missing
Changed GraceDB › Events › 1 › Spin1z

Baseline

0.2165625

Selected

0.21656249
Changed GraceDB › Events › 1 › Spin2z

Baseline

0.2165625

Selected

0.21656249
Changed GraceDB › Events › 1 › State

Baseline

preferred

Selected

neighbor
Changed GraceDB › Events › 1 › UID

Baseline

G488572

Selected

G602483
Removed GraceDB › Events › 1 › V1SNR

Baseline

2.6349485

Selected

Missing
Changed GraceDB › Events › 1 › XML

Baseline

https://gracedb.ligo.org/api/events/G488572/files/coinc.xml

Selected

https://gracedb.ligo.org/api/events/G602483/files/coinc.xml
Added GraceDB › Events › 2

Baseline

Missing

Selected

{'FAR': 1.824682364985044e-07, 'UID': 'G488572', 'XML': 'https://gracedb.ligo.org/api/events/G488572/files/coinc.xml', 'Pbbh': 0.9048708539447587, 'Pbns': 1.415105057172829e-17, 'H1SNR': 7.6569505, 'HasNS': 0.0, 'L1SNR': 4.714335, 'Mass1': 25.532983, 'Mass2': 26.346, 'Notes': [], 'Pnsbh': 9.649258593942643e-16, 'State': 'preferred', 'V1SNR': 2.6349485, 'Pastro': 0.9048708539447597, 'Skymap': 'https://gracedb.ligo.org/api/events/G488572/files/bayestar.multiorder.fits', 'Spin1z': 0.2165625, 'Spin2z': 0.2165625, 'GPSTime': 1401163424.553467, 'Pipeline': 'gstlal', 'HasMassGap': 0.0, 'HasRemnant': 0.0, 'NetworkSNR': 9.369994571697736, 'SearchType': 'low latency', 'EarlyWarning': False, 'InOfflineCatalog': False, 'SourceClassification': 'https://gracedb.ligo.org/api/events/G488572/files/gstlal.p_astro.json'}
Changed GraceDB › LastUpdate

Baseline

2025-09-25 12:41:46.960496

Selected

2025-09-26 12:46:07.687714

View raw JSON diff

Technical inspection aid only. The semantic summary above remains authoritative.

Baseline f79ffe4c

{"Info": {"Notes": [], "Labels": [], "SchemaVersion": "v3"}, "Sname": "S240531aa", "GraceDB": {"ADVOK": true, "Events": [{"FAR": 5.064588566569377e-08, "UID": "G602483", "XML": "https://gracedb.ligo.org/api/events/G602483/files/coinc.xml", "H1SNR": 7.529521, "HasNS": 0.0, "L1SNR": 4.4499578, "Mass1": 28.050522, "Mass2": 23.732178, "Notes": [], "State": "neighbor", "Spin1z": 0.21656249, "Spin2z": 0.21656249, "GPSTime": 1401163424.554581, "Pipeline": "gstlal", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 9.139559714671687, "SearchType": "offline", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 2, "InOfflineCatalog": true}, {"FAR": 1.824682364985044e-07, "UID": "G488572", "XML": "https://gracedb.ligo.org/api/events/G488572/files/coinc.xml", "Pbbh": 0.9048708539447587, "Pbns": 1.415105057172829e-17, "H1SNR": 7.6569505, "HasNS": 0.0, "L1SNR": 4.714335, "Mass1": 25.532983, "Mass2": 26.346, "Notes": [], "Pnsbh": 9.649258593942643e-16, "State": "preferred", "V1SNR": 2.6349485, "Pastro": 0.9048708539447597, "Skymap": "https://gracedb.ligo.org/api/events/G488572/files/bayestar.multiorder.fits", "Spin1z": 0.2165625, "Spin2z": 0.2165625, "GPSTime": 1401163424.553467, "Pipeline": "gstlal", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 9.369994571697736, "SearchType": "low latency", "EarlyWarning": false, "InOfflineCatalog": false, "SourceClassification": "https://gracedb.ligo.org/api/events/G488572/files/gstlal.p_astro.json"}], "LastUpdate": "2025-09-25 12:41:46.960496", "Instruments": "H1,L1,V1", "SupereventFAR": 5.064588566569377e-08}, "Lensing": {"SingletAnalyses": {}, "MultipletAnalyses": {}}, "Cosmology": {"Notes": [], "Counterparts": [], "PreferredLowLatencySkymap": "https://gracedb.ligo.org/api/events/G488572/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": [], "ParameterEstimationStatuses": []}, "ParameterEstimation": {"Notes": [], "Status": "unstarted", "Results": [], "Analysts": [], "Reviewers": [], "SafeSamplingRate": 4096.0, "SafeLowerMassRatio": 0.05}, "RatesAndPopulations": {"RnPRunsUsingThisSuperevent": []}, "DetectorCharacterization": {"Notes": [], "Status": "unstarted", "Analysts": [], "Reviewers": [], "DQRResults": [], "RecommendedDetectors": [], "ParticipatingDetectors": []}}

Selected 3302c6e9

{"Info": {"Notes": [], "Labels": [], "SchemaVersion": "v3"}, "Sname": "S240531aa", "GraceDB": {"ADVOK": true, "Events": [{"FAR": 2.753399431116607e-08, "UID": "G603948", "XML": "https://gracedb.ligo.org/api/events/G603948/files/coinc.xml", "H1SNR": 7.1597223, "HasNS": 0.0, "L1SNR": 5.0148578, "Mass1": 29.849068, "Mass2": 20.515491, "Notes": [], "State": "neighbor", "Skymap": "https://gracedb.ligo.org/api/events/G603948/files/bayestar.multiorder.fits", "Spin1z": 0.09249603, "Spin2z": 0.09249603, "GPSTime": 1401163424.550537, "Pipeline": "pycbc", "HasMassGap": 0.005275362318840579, "HasRemnant": 0.0, "NetworkSNR": 8.741305523784774, "SearchType": "offline", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 3, "InOfflineCatalog": true}, {"FAR": 5.064588566569377e-08, "UID": "G602483", "XML": "https://gracedb.ligo.org/api/events/G602483/files/coinc.xml", "H1SNR": 7.529521, "HasNS": 0.0, "L1SNR": 4.4499578, "Mass1": 28.050522, "Mass2": 23.732178, "Notes": [], "State": "neighbor", "Spin1z": 0.21656249, "Spin2z": 0.21656249, "GPSTime": 1401163424.554581, "Pipeline": "gstlal", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 9.139559714671687, "SearchType": "offline", "EarlyWarning": false, "CatalogNumber": "5", "CatalogVersion": 3, "InOfflineCatalog": true}, {"FAR": 1.824682364985044e-07, "UID": "G488572", "XML": "https://gracedb.ligo.org/api/events/G488572/files/coinc.xml", "Pbbh": 0.9048708539447587, "Pbns": 1.415105057172829e-17, "H1SNR": 7.6569505, "HasNS": 0.0, "L1SNR": 4.714335, "Mass1": 25.532983, "Mass2": 26.346, "Notes": [], "Pnsbh": 9.649258593942643e-16, "State": "preferred", "V1SNR": 2.6349485, "Pastro": 0.9048708539447597, "Skymap": "https://gracedb.ligo.org/api/events/G488572/files/bayestar.multiorder.fits", "Spin1z": 0.2165625, "Spin2z": 0.2165625, "GPSTime": 1401163424.553467, "Pipeline": "gstlal", "HasMassGap": 0.0, "HasRemnant": 0.0, "NetworkSNR": 9.369994571697736, "SearchType": "low latency", "EarlyWarning": false, "InOfflineCatalog": false, "SourceClassification": "https://gracedb.ligo.org/api/events/G488572/files/gstlal.p_astro.json"}], "LastUpdate": "2025-09-26 12:46:07.687714", "Instruments": "H1,L1,V1", "SupereventFAR": 5.064588566569377e-08}, "Lensing": {"SingletAnalyses": {}, "MultipletAnalyses": {}}, "Cosmology": {"Notes": [], "Counterparts": [], "PreferredLowLatencySkymap": "https://gracedb.ligo.org/api/events/G488572/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": [], "ParameterEstimationStatuses": []}, "ParameterEstimation": {"Notes": [], "Status": "unstarted", "Results": [], "Analysts": [], "Reviewers": [], "SafeSamplingRate": 4096.0, "SafeLowerMassRatio": 0.05}, "RatesAndPopulations": {"RnPRunsUsingThisSuperevent": []}, "DetectorCharacterization": {"Notes": [], "Status": "unstarted", "Analysts": [], "Reviewers": [], "DQRResults": [], "RecommendedDetectors": [], "ParticipatingDetectors": []}}

Metadata for selected version

Viewing historical metadata — not the current record

Summary

No summary highlights available.

Info

Notes: Empty list
Labels: Empty list
SchemaVersion: v3

GraceDB

ADVOK

✓ True

Events

Item 1

FAR: 2.753399431116607e-08
UID: G603948
XML: https://gracedb.ligo.org/api/events/G603948/files/coinc.xml
H1SNR: 7.1597223
HasNS: 0.0
L1SNR: 5.0148578
Mass1: 29.849068
Mass2: 20.515491
Notes: Empty list
State: neighbor
Skymap: https://gracedb.ligo.org/api/events/G603948/files/bayestar.multiorder.fits
Spin1z: 0.09249603
Spin2z: 0.09249603
GPSTime: 1401163424.550537
Pipeline: pycbc
HasMassGap: 0.005275362318840579
HasRemnant: 0.0
NetworkSNR: 8.741305523784774
SearchType: offline
EarlyWarning: ✗ False
CatalogNumber: 5
CatalogVersion: 3
InOfflineCatalog: ✓ True

Item 2

FAR: 5.064588566569377e-08
UID: G602483
XML: https://gracedb.ligo.org/api/events/G602483/files/coinc.xml
H1SNR: 7.529521
HasNS: 0.0
L1SNR: 4.4499578
Mass1: 28.050522
Mass2: 23.732178
Notes: Empty list
State: neighbor
Spin1z: 0.21656249
Spin2z: 0.21656249
GPSTime: 1401163424.554581
Pipeline: gstlal
HasMassGap: 0.0
HasRemnant: 0.0
NetworkSNR: 9.139559714671687
SearchType: offline
EarlyWarning: ✗ False
CatalogNumber: 5
CatalogVersion: 3
InOfflineCatalog: ✓ True

Item 3

FAR: 1.824682364985044e-07
UID: G488572
XML: https://gracedb.ligo.org/api/events/G488572/files/coinc.xml
Pbbh: 0.9048708539447587
Pbns: 1.415105057172829e-17
H1SNR: 7.6569505
HasNS: 0.0
L1SNR: 4.714335
Mass1: 25.532983
Mass2: 26.346
Notes: Empty list
Pnsbh: 9.649258593942643e-16
State: preferred
V1SNR: 2.6349485
Pastro: 0.9048708539447597
Skymap: https://gracedb.ligo.org/api/events/G488572/files/bayestar.multiorder.fits
Spin1z: 0.2165625
Spin2z: 0.2165625
GPSTime: 1401163424.553467
Pipeline: gstlal
HasMassGap: 0.0
HasRemnant: 0.0
NetworkSNR: 9.369994571697736
SearchType: low latency
EarlyWarning: ✗ False
InOfflineCatalog: ✗ False
SourceClassification: https://gracedb.ligo.org/api/events/G488572/files/gstlal.p_astro.json

LastUpdate

2025-09-26 12:46:07.687714

Instruments

H1,L1,V1

SupereventFAR

5.064588566569377e-08

Parameter estimation (PE)

Notes: Empty list
Status: unstarted
Results: Empty list
Analysts: Empty list
Reviewers: Empty list
SafeSamplingRate: 4096.0
SafeLowerMassRatio: 0.05

Lensing

Detector characterisation (Detchar)

Notes: Empty list
Status: unstarted
Analysts: Empty list
Reviewers: Empty list
DQRResults: Empty list
RecommendedDetectors: Empty list
ParticipatingDetectors: Empty list

Extreme matter

Cosmology

Notes: Empty list
Counterparts: Empty list
PreferredLowLatencySkymap: https://gracedb.ligo.org/api/events/G488572/files/bayestar.multiorder.fits
CosmologyRunsUsingThisSuperevent: Empty list

S240531aa

History

Version history

Selected version details

Changes from previous version f79ffe4c to selected version 3302c6e9

Baseline f79ffe4c

Selected 3302c6e9

Metadata for selected version

Summary

Info

GraceDB

Parameter estimation (PE)

Lensing

Detector characterisation (Detchar)

Extreme matter

Cosmology

Catalogue tracking

Publications

Additional metadata: Sname

Additional metadata: TestingGR

Additional metadata: RatesAndPopulations

S240531aa Copy superevent ID Show full identifier S240531aa

History

Version history

Selected version details

Changes from previous version f79ffe4c to selected version 3302c6e9

Baseline f79ffe4c

Selected 3302c6e9

Metadata for selected version

Summary

Info

All remaining fields

GraceDB

All remaining fields

Parameter estimation (PE)

All remaining fields

Lensing

Detector characterisation (Detchar)

All remaining fields

Extreme matter

Cosmology

All remaining fields

Catalogue tracking

Publications

Additional metadata: Sname

All remaining fields

Additional metadata: TestingGR

Additional metadata: RatesAndPopulations

S240531aa