| bias | BiasFrame | The BiasFrame used to bias-correct the RawDarkFrames | | |
| chip | Chip | Information about the chip | | instr.det meta.id |
| cosmicconf | CosmicConfig | A CosmicConfig | | |
| creation_date | datetime | Date this object was created | | time.epoch |
| dark_current | float | The dark current | ADU / pixel / hour | instr.sensitivity |
| event_counts | int | The number of cosmic ray events in each exposure | | |
| hot | HotPixelMap | A HotPixelMask | | |
| instrument | Instrument | Information about the instrument | | instr.obsty |
| is_valid | int | Manual/external flag to disqualify bad data (SuperFlag) | | meta.code |
| observing_block | ObservingBlock | Information about the observing block | | |
| particle_event_rate | float | The event rate | particles / cm**2 / hour | phot instr.det |
| process_params | DarkCurrentParameters | Process parameters | | |
| process_status | int | A flag indicating the processing status | | meta.code |
| quality_flags | int | Automatic/internal quality flag | | meta.code |
| raw_dark_frames | RawDarkFrame | A list of RawDarkFrame objects | | |
| template | Template | Information about the template | | |
| timestamp_end | datetime | End of valid period | | time |
| timestamp_start | datetime | Start of valid period | | time |
