| AFFINE_PARS | float | List of Parameters for the affine transformation (a0, a1, a2, b0, b1, b2) | | |
| FLAG_MASK | float | The SExtractor mask to select objects for astrometric pairing: Flag & FLAG_MASK | | |
| MAX_OFFSET | float | Maximum allowed offset between extracted and reference objects | pixel | |
| MIN_OBJ | int | The minimum number of reference objects required to determine affine transformation | | |
| MIN_PHOTS | float | List of photometric parameter limits for pairing with reference objects | | |
| PHOT | str | Name of the table column containing object flux measures | | |
| POS_ERROR | float | Positional error between extracted and reference objects | pixel | |
| RMS_TOL | float | RMS tolerenace for triangulation matching | arcsec | |
| SEL_MIN | int | Minimum number of objects used in triangulation method | | |
| VERBOSE | str | Verbosity level (NONE, NORMAL, VERBOSE, DEBUG) | | |
| XMAX | float | Maximum X-coordinate allowed in pairing | | |
| XMIN | float | Minimum X-coordinate allowed in pairing | | |
| XPIXSIZE | float | The scaling of pixels with which CDELT1 is multiplied | | |
| YMAX | float | Maximum Y-coordinate allowed in pairing | | |
| YMIN | float | Minimum Y-coordinate allowed in pairing | | |
| YPIXSIZE | float | The scaling of pixels with which CDELT2 is multiplied | | |
