| Description: The two-digit "base 36" code identifying the visit number for this observations. An individual visit can comprise one or more orbits of HST around the Earth. |
| Namespace Id: hst | Steward: rings | Class Name: Program_Parameters | 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 | |