| creation_date | datetime | The creation date of the object | |
| DATE_OBS | datetime | UTC date on which the data of this file were obtained. The format used is YYYY-MM-DDThh:mm:ss.sss | |
| env_measurements | EnvMeasurement | The measurements of the instrument environment | |
| filename | str | The name of the associated file | |
| globalname | str | The name used to store and retrieve file to and from Storage | |
| guiding_system | GuidingSystem | The Guiding System used for the observation | |
| has_been_stored | int | Is the associated fits file stored | |
| log_file | LogFile | The log file of the process which created this object | |
| observation_type | str | The type of the observation | |
| observing_block | ObservingBlock | The Observing Block of the observation | |
