| astrom | Astrom | | | |
| creation_date | datetime | Date this object was created | | time.epoch |
| DATE | datetime | | | time.obs |
| EPOCH | float | | | time.epoch |
| EQUINOX | float | | | time.equinox |
| filename | str | The base name of the associated file object | | meta.id meta.file |
| filter | Filter | | | instr.filter meta.id |
| globalname | str | The name used to store and retrieve object from Storage | | meta.id |
| imstat | Imstat | Image statistics | | |
| instrument | Instrument | | | instr.obsty |
| is_valid | int | Manual/external flag to disqualify bad data (SuperFlag) | | meta.code |
| NAXIS1 | int | The x-size of the chip | | pos.wcs.naxis |
| NAXIS2 | int | The y-size of the chip | | pos.wcs.naxis |
| OBJECT | str | Identifier (16 chars) | | meta.id |
| process_status | int | | | meta.code |
| quality_flags | int | | | meta.code |
| RADECSYS | str | | | pos |
| SKY | float | Sky backgr in mag/sqarcs | | instr.skyLevel |
