S240420al

cbc-workflow-er16-o4b
Current version: 4433f9f2 recorded 2026-06-10 19:42 UTC v3

Metadata

Summary

Instruments
H1,L1,V1
ADVOK state
✓ True
False-alarm rate (FAR)
1.71×10⁻⁶
Astrophysical probability (p_astro) classification
0.178

Info

Details

Notes
""

All remaining fields

id
21733

GraceDB

Key fields

Instruments
H1,L1,V1
ADVOK state
✓ True
False-alarm rate (FAR)
1.71×10⁻⁶
Astrophysical probability (p_astro) classification
0.178

Details

Notes
""
GraceDB events comparison, 2 records
Event identifier Pipeline State GPS time False-alarm rate (FAR) Network signal-to-noise ratio Astrophysical probability Binary black-hole probability Binary neutron-star probability Neutron-star–black-hole probability Primary mass Secondary mass
G631715 gstlal neighbor 1397622073.877767 1.71×10⁻⁶ 8.72×10⁰ — — — — 6.75×10¹ 7.65×10¹
G475899 gstlal preferred 1397622073.877767 3.97×10⁻⁶ 8.63×10⁰ 0.396 0.396 0 0 6.75×10¹ 7.65×10¹

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id
185776
label
""
h1 snr
6.8718328
l1 snr
4.7036195
v1 snr
—
k1 snr
—
g1 snr
—
spin 1z
0.72703123
spin 2z
0.72703123
has ns
0.0
has remnant
0.0
has mass gap
0.012110860154338415
pipeline has ns
—
pipeline has remnant
—
pipeline has mass gap
—
xml
https://gracedb.ligo.org/api/v2/events/G631715/files/coinc.xml
source classification
""
skymap
https://gracedb.ligo.org/api/v2/events/G631715/files/bayestar.multiorder.fits
early warning
✗ False
search type
offline
catalog number
5
catalog version
25.0
in offline catalog
✓ True
notes
""
id
185777
label
""
h1 snr
6.8720059
l1 snr
4.7031474
v1 snr
2.2495334
k1 snr
—
g1 snr
—
spin 1z
0.72703125
spin 2z
0.72703125
has ns
0.0
has remnant
0.0
has mass gap
0.026260429225946468
pipeline has ns
—
pipeline has remnant
—
pipeline has mass gap
—
xml
https://gracedb.ligo.org/api/v2/events/G475899/files/coinc.xml
source classification
https://gracedb.ligo.org/api/v2/events/G475899/files/gstlal.p_astro.json
skymap
https://gracedb.ligo.org/api/v2/events/G475899/files/bayestar.multiorder.fits
early warning
✗ False
search type
low latency
catalog number
""
catalog version
—
in offline catalog
✗ False
notes
""
id
21733
last update
—

Parameter estimation (PE)

Details

Parameter-estimation status
unstarted
Analysts
Empty list
Reviewers
Empty list
Notes
""
Parameter estimation results comparison, 0 records
Result identifier Inference software Waveform approximant Run status Review status Analysts Reviewers Deprecated

All remaining fields

id
21733
illustrative result
""
skymap release result
""
safe sampling rate
4096.0
safe lower chirp mass
—
safe upper chirp mass
—
safe lower primary mass
—
safe upper primary mass
—
safe lower secondary mass
—
safe upper secondary mass
—
safe lower mass ratio
0.05
safe upper luminosity distance
—
safe geocent time
—
configurator duration
—
configurator minimum frequency
—
configurator maximum frequency
—

Tests of general relativity (TGR)

Details

Notes
""

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id
21733
imrct analyses
Empty list
tiger analyses
Empty list
fti analyses
Empty list
pcatgr analyses
Empty list
pseobrd analyses
Empty list
pyring analyses
Empty list
pol analyses
Empty list
mdr analyses
Empty list
sim analyses
Empty list
ssb analyses
Empty list
bhm analyses
Empty list
losa analyses
Empty list
sma analyses
Empty list
echoes cwb analyses
Empty list
residuals analyses
Empty list
unmodeled echoes analyses
Empty list
qnm rational filter analyses
Empty list
modeled echoes analyses
Empty list

Lensing

All remaining fields

Companion superevent
Empty list
Singlet analysis identifier
Empty list
id
21733

Detector characterisation (Detchar)

Details

Notes
""

All remaining fields

id
21733
recommended detectors
Empty list
dqr results
Empty list
analysts
Empty list
reviewers
Empty list
status
unstarted
recommended duration
—
participating detectors
""

Extreme matter

Details

Notes
""

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id
21733
analyses
Empty list

Cosmology

Details

Notes
""

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id
21733
counterparts
Empty list
runs
Empty list
preferred low latency skymap
https://gracedb.ligo.org/api/v2/events/G475899/files/bayestar.multiorder.fits

Rapid neutron-star parameter estimation (RNP)

All remaining fields

id
21733
runs
Empty list

Catalogue tracking

Details

Notes
""

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id
18278
pe statuses
Empty list
search statuses
Item 1
id
95998
uid
gstlal
review status
unstarted
finalized
✗ False
chunk
0.0
notes
""

Publications

All remaining fields

id
21733
papers
""

Additional metadata: id

All remaining fields

id
21733

Additional metadata: sname

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sname
S240420al

Additional metadata: commit sha

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commit sha
4433f9f2c2ed05af9d43e4694cc90844d98b579a

Additional metadata: commit timestamp

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commit timestamp
2026-06-11T05:42:06+10:00

Additional metadata: is current

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is current
✓ True

Additional metadata: schema version

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schema version
v3

Additional metadata: raw payload

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raw payload
Info
Notes
Empty list
Labels
Empty list
SchemaVersion
v3
Sname
S240420al
GraceDB
ADVOK
✓ True
Events
Item 1
FAR
1.707217048502563e-06
UID
G631715
XML
https://gracedb.ligo.org/api/v2/events/G631715/files/coinc.xml
H1SNR
6.8718328
HasNS
0.0
L1SNR
4.7036195
Mass1
67.469643
Mass2
76.482292
Notes
Empty list
State
neighbor
Skymap
https://gracedb.ligo.org/api/v2/events/G631715/files/bayestar.multiorder.fits
Spin1z
0.72703123
Spin2z
0.72703123
GPSTime
1397622073.877767
Pipeline
gstlal
HasMassGap
0.012110860154338415
HasRemnant
0.0
NetworkSNR
8.715520930219988
SearchType
offline
EarlyWarning
✗ False
CatalogNumber
5
CatalogVersion
25
InOfflineCatalog
✓ True
Item 2
FAR
3.974135929925831e-06
UID
G475899
XML
https://gracedb.ligo.org/api/v2/events/G475899/files/coinc.xml
Pbbh
0.39639396956316386
Pbns
8.690981742468756e-17
H1SNR
6.8720059
HasNS
0.0
L1SNR
4.7031474
Mass1
67.469639
Mass2
76.482289
Notes
Empty list
Pnsbh
6.6100284787456545e-15
State
preferred
V1SNR
2.2495334
Pastro
0.39639396956317063
Skymap
https://gracedb.ligo.org/api/v2/events/G475899/files/bayestar.multiorder.fits
Spin1z
0.72703125
Spin2z
0.72703125
GPSTime
1397622073.877767
Pipeline
gstlal
HasMassGap
0.026260429225946468
HasRemnant
0.0
NetworkSNR
8.625802057794186
SearchType
low latency
EarlyWarning
✗ False
InOfflineCatalog
✗ False
SourceClassification
https://gracedb.ligo.org/api/v2/events/G475899/files/gstlal.p_astro.json
LastUpdate
2026-06-10 12:42:03.201941
Instruments
H1,L1,V1
SupereventFAR
1.707217048502563e-06
SupereventPastro
0.17831109318842187
Lensing
SingletAnalyses
—
MultipletAnalyses
—
Cosmology
Notes
Empty list
Counterparts
Empty list
PreferredLowLatencySkymap
https://gracedb.ligo.org/api/v2/events/G475899/files/bayestar.multiorder.fits
CosmologyRunsUsingThisSuperevent
Empty list
TestingGR
Notes
Empty list
BHMAnalyses
Empty list
FTIAnalyses
Empty list
MDRAnalyses
Empty list
POLAnalyses
Empty list
SIMAnalyses
Empty list
SMAAnalyses
Empty list
SSBAnalyses
Empty list
LOSAAnalyses
Empty list
IMRCTAnalyses
Empty list
TIGERAnalyses
Empty list
PCATGRAnalyses
Empty list
PYRINGAnalyses
Empty list
PSEOBRDAnalyses
Empty list
EchoesCWBAnalyses
Empty list
ResidualsAnalyses
Empty list
ModeledEchoesAnalyses
Empty list
UnmodeledEchoesAnalyses
Empty list
QNMRationalFilterAnalyses
Empty list
Publications
Papers
Empty list
ExtremeMatter
Analyses
Empty list
CatalogTracking
Notes
Empty list
SearchResultStatuses
Item 1
UID
gstlal
Chunk
0
Notes
Empty list
Finalized
✗ False
ReviewStatus
unstarted
ParameterEstimationStatuses
Empty list
ParameterEstimation
Notes
Empty list
Status
unstarted
Results
Empty list
Analysts
Empty list
Reviewers
Empty list
SafeSamplingRate
4096.0
SafeLowerMassRatio
0.05
RatesAndPopulations
RnPRunsUsingThisSuperevent
Empty list
DetectorCharacterization
Notes
Empty list
Status
unstarted
Analysts
Empty list
Reviewers
Empty list
DQRResults
Empty list
RecommendedDetectors
Empty list
ParticipatingDetectors
Empty list

Additional metadata: created at

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created at
2026-07-28T10:45:49.767937+10:00

Additional metadata: updated at

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updated at
2026-07-28T10:45:49.767942+10:00