Visit detector (CcdVisit)

Observation metadata for individual detectors (CCDs; date, time, band, PSF, zeropoint).

Schema: CcdVisit table

Access

The visit detector catalog is accessible via the TAP and butler services.

Recommended access service: TAP

TAP

  • Citation: NSF-DOE Vera C. Rubin Observatory (2025); Legacy Survey of Space and Time Data Preview 1: CcdVisit searchable catalog DOI Logo https://doi.org/10.71929/rubin/2570331

  • Table name: CcdVisit

  • Columns: 51

  • Rows: 16,071

Butler

  • Citation: NSF-DOE Vera C. Rubin Observatory (2025); Legacy Survey of Space and Time Data Preview 1: visit_detector_table dataset type DOI Logo https://doi.org/10.71929/rubin/2570330

  • Dataset type: ('visit_detector_table', {instrument}, ArrowAstropy)

  • Format: Parquet

  • Number of Butler datasets: 1

Description

A “visit” is an observation in a single filter, obtained at a given time and sky coordinate. A “detector” is one of the LSSTCam’s 189 CCDs (charge-coupled device). A “CcdVisit” refers to an observation with a single detector as the reference for the observational metadata (e.g., airmass, seeing).

Tutorials

See the 200-level notebook or 200-level portal tutorials demonstrating how to access the visit detector (CcdVisit) table.