LIGO Document T2400058-v3

Segments used for creating standard SFTs in O4 data

Document #:
LIGO-T2400058-v3
Document type:
T - Technical notes
Other Versions:
LIGO-T2400058-v2
04 Sep 2025, 15:06
LIGO-T2400058-v1
28 Aug 2025, 10:58
Abstract:

GPS start and stop times of segments used for creation of standard set of Short Fourier Transforms from O4 data. These segments use analysis ready C00 data minus CAT1 vetoes. Segment files can be used as input to SFT-generation algorithms, e.g., lalpulsar_MakeSFTDAG.

Read below for the description of the files, their version history, and with what strain data version (C0x) they should be used.

Description of files:
- segsH1AnalysisReadyMinusVetoes_O4a_C00_g0f406df6.txt Second release of H1 analysis ready segments minus CAT1 vetoes (git hash 0f406df6) between GPS 1368975618 - 1389456018 (O4a). Fixes end time of H1:DCH-SQZ_ERROR_ADF_SERVO flag. Unchanged since first release in T2400058-v2
- segsH1AnalysisReadyMinusVetoes_O4_C01_g30376484.txt First release of H1 analysis ready segments minus CAT1 vetoes (git hash 30376484) between GPS 1368975618 - 1410652818 (O4a and first 4 months of O4b). Valid for use in C00 or C01 data from this epoch
- segsL1AnalysisReadyMinusVetoes_O4a_C00_g0f406df6.txt Second release of L1 analysis ready segments minus CAT1 vetoes (git hash 0f406df6) between GPS 1368975618 - 1389456018 (O4a). Unchanged since first release in T2400058-v1
- segsL1AnalysisReadyMinusVetoes_O4_C01_g30376484.txt First release of L1 analysis ready segments minus CAT1 vetoes (git hash 30376484) between GPS 1368975618 - 1410652818 (O4a and first 4 months of O4b). Valid for use in C00 or C01 data from this epoch

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