| Description: The download_priority attribute specifies which data to downlink/transmit, based on order of importance. The ranking and meaning of specific values will vary depending on the mission, and should be defined in the mission software interface specification (SIS). | 
| Namespace Id: img | Steward: img | Class Name: Histogram | Type: ASCII_NonNegative_Integer | 
| Minimum Value: 0 | Maximum Value: 18446744073709551615 | Minimum Characters: None | Maximum Characters: None | 
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: INTEGER | 
| Status: Active | Nillable: false | Pattern: [0-9]+ | 
| Permissible Value(s) | No Values |  |