| AIRMEND | float | Airmass at end of observation | | obs.airMass |
| AIRMSTRT | float | Airmass at start of observation | | obs.airMass |
| astrom | Astrom | Information about the astrometry | | |
| back | BackgroundFrame | A BackgroundFrame object | | |
| bias | BiasFrame | A BiasFrame object | | |
| chip | Chip | Information about the chip | | instr.det meta.id |
| cold | ColdPixelMap | A ColdPixelMap object | | |
| creation_date | datetime | Date this object was created | | time.epoch |
| DATE | datetime | UTC date the original data file was saved | | time.obs |
| DATE_OBS | datetime | UTC date at the start of the observation | | time.obs |
| EXPTIME | float | Total observation time | sec | time.expo |
| filename | str | The name of the associated file | | meta.id meta.file |
| filter | Filter | Information about the filter | | instr.filter meta.id |
| flat | MasterFlatFrame | A MasterFlatFrame object | | |
| fringe | FringeFrame | A FringeFrame object | | |
| globalname | str | The name used to store and retrieve file to and from Storage | | meta.id |
| hot | HotPixelMap | A HotPixelMap object | | |
| illumination | IlluminationCorrectionFrame | An IlluminationCorrection object | | |
| imstat | Imstat | Image statistics for the frame | | |
| instrument | Instrument | Information about the instrument | | instr.obsty |
| is_valid | int | Manual/external flag to disqualify bad data (SuperFlag) | | meta.code |
| NAXIS1 | int | Length of data in axis 1 | pixel | pos.wcs.naxis |
| NAXIS2 | int | Length of data in axis 2 | pixel | pos.wcs.naxis |
| OBJECT | str | Object name | | meta.id |
| observing_block | ObservingBlock | Information about the observing block | | |
| process_params | ReducedScienceFrameParameters | Processing parameters | | |
| process_status | int | A flag indicating the processing status | | meta.code |
| psf_radius | float | Stellar Full Width at Half Maximum (FWHM) | arcsec | instr.det.psf |
| quality_flags | int | Automatic/internal quality flag | | meta.code |
| raw | RawScienceFrame | A RawScienceFrame object | | |
| scale_factor | float | The de-fringing scale-factor | | |
| template | Template | Information about the template | | |
| weight | WeightFrame | The WeightFrame associated with this frame | | |
