| Description: Shutter mode. Indicates which camera was shuttered, Narrow Angle and/or Wide Angle. This attribute corresponds to the keyword SHUTTER_MODE_ID in earlier versions of Voyager data products. | 
| Namespace Id: vgr | Steward: rings | Class Name: ISS | 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) | Value | Value Meaning | 
|  | BODARK | Shutter remained closed for Narrow Angle and Wide Angle cameras. | 
|  | BOTALT | Both the Narrow Angle and the Wide Angle shutters opened alternately | 
|  | BOTSIM | Both the Narrow Angle and the Wide Angle shutters opened simultaneously | 
|  | BSIMAN | BOTSIM mode followed by NAONLY | 
|  | NAONLY | Only the Narrow Angle shutter opened | 
|  | NOSHUT | Neither the Narrow Angle nor the Wide Angle shutter opened | 
|  | WAONLY | Only the Wide Angle shutter opened |