| Description: The aperture attribute provides the diameter of an opening, usually circular, that limits the quantity of light that can enter an optical instrument. |
| Namespace Id: pds | Steward: pds | Class Name: Telescope | Type: ASCII_Real |
| Minimum Value: 0 | Maximum Value: 1.7976931348623157e308 | Minimum Characters: None | Maximum Characters: None |
| Unit of Measure Type: Units_of_Length | Default Unit Id: m | Attribute Concept: Number | Conceptual Domain: Real |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | No Values | |