| Current isophotal photometric calibration coefficients for all plates |
| This table contains the gradient, zeropoint, "slump" (field-radius dependent term) and colour offset (0.0 for Bj) coefficients for all current isophotal magnitude calibrations of each plate in the SSA. |
| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
|---|---|---|---|---|---|---|
| plateID | int | 4 | Unique identifier of the plate | ID_PLATE | ||
| gradient | real | 4 | mags per instrumental mag | Gradient of the isophotal scale | MODEL_PARAM | |
| zeropoint | real | 4 | mags | Zeropoint of the isophotal scale | PHOT_ZP | |
| slump | real | 4 | mags per (2.5 degrees)^4 | Fourth-order radial term in calibration | 0.0 | MODEL_PARAM |
| colourZP | real | 4 | mags | Colour zeropoint (wrt Bj) of calibration | 0.0 | MODEL_PARAM |
| Total length | 20 |