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S30XL-LESA/LDMX
System Metadata
All file types have the following built-in metadata.
| Field | Type | Description | Notes |
|---|---|---|---|
| runMin | integer | min run number in file's data | |
| runMax | integer | max run number in file's data | |
| eventCount | integer | number of events in file | |
| size | integer | file's size in bytes | |
| checksum | string | MD5 checksum of file |
EVIO Files
Each EVIO file in the data catalog may have the following metadata values.
Values with a line through them are deprecated and are not set for new datasets (e.g. PhysRun 2016).
| Field | Type | Description | Notes |
| BAD_EVENTS | integer | number of unreadable EVIO events in the file | |
| BLINDED | integer | 1 if file is blinded or 0 if not | |
| END_EVENT_COUNT | integer | total event count from END record (if exists) | only set for last file in run (if DAQ did not crash!) |
| END_TIMESTAMP | integer | Unix timestamp of END event | only set for last file in run |
| FILE | integer | file sequence number | |
| FIRST_HEAD_TIMESTAMP | integer | timestamp of first head bank in seconds | |
| FIRST_PHYSICS_EVENT | integer | event ID of first physics event | |
| integer | first TI time | EngRun2015 files – deprecated for new data | |
| GO_TIMESTAMP | integer | Unix timestamp of GO event | only set for first file in run |
| LAST_HEAD_TIMESTAMP | integer | timestamp of last head bank in seconds | |
| LAST_PHYSICS_EVENT | integer | event ID of last physics event | |
| integer | last TI time | EngRun2015 files – deprecated for new data | |
| LED_COSMIC | integer | number of LED_COSMIC triggers | |
| PHYSICS_EVENTS | integer | number of valid physics events | bad events not counted |
| PRESTART_TIMESTAMP | integer | Unix timestamp of PRESTART event | only set for first file in run |
| PAIRS0 | integer | number of PAIRS0 triggers | |
| PAIRS1 | integer | number of PAIRS1 triggers | |
| PULSER | integer | number of PULSER triggers | |
| SINGLES0 | integer | number of SINGLES0 triggers | |
| SINGLES1 | integer | number of SINGLES1 triggers | |
| integer | delta between TI times | EngRun2015 files – deprecated for new data | |
| TI_TIME_MIN_OFFSET | string | min TI time offset found in this file | stored as string instead of integer due to datacat bug |
| TI_TIME_MAX_OFFSET | string | max TI time offset found in this file | stored as string instead of integer due to datacat bug |
| TI_TIME_N_OUTLIERS | integer | number of outlier values for TI time | determines whether TI time offsets are usable or not |
| TRIGGER_RATE | double | rough trigger rate calculation | only has 1 second time resolution |
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