The Photometry table contains photometric measurements for sources listed in the Sources table. It refers back to the Telescopes and Instruments tables as well. The combination of source, band, and reference is expected to be unique. Columns marked with an asterisk (*) may not be empty.
| Column Name | Description | Unit | Data Type | Key Type |
|---|---|---|---|---|
| *source | Unique identifier for the source | String(100) | primary and foreign: Sources.source | |
| *band | Name of the wavelength band | String(30) | primary and foreign: PhotometryFilters.band | |
| *magnitude | Magnitude value | mag | Float | |
| magnitude_error | Magnitude uncertainty | mag | Float | |
| telescope | Name of telescope | String(30) | foreign: Telescopes.telescope | |
| instrument | Name of instrument | String(30) | foreign: Instruments.instrument | |
| epoch | Decimal year | year | Float | |
| comments | Free form comments | String(1000) | ||
| *reference | Reference | String(30) | primary and foreign: Publications.reference |
- Band names refer to entries in the Photometry Filters table and are listed at the SVO filter profile service.