| Description: The orbit_number element, if present, is the value assigned by the mission for the orbit number associated with the observation. Note due to the need to redesignate some early orbits, there are orbits for which the number includes letters. |
| Namespace Id: cassini | Steward: atm | Class Name: PPI_Specific_Attributes | Type: ASCII_Short_String_Collapsed |
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: SHORT_STRING |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | No Values | |