| Description: The horizon_mask_elevation attribute specifies the elevation (in degrees) used as the horizontal cutoff in a mask file that prevents the horizon and sky features in the image from being processed. If this attribute is not present in the product label, no horizon mask was used. |
| Namespace Id: img_surface | Steward: img | Class Name: Image_Mask_File | Type: ASCII_Real |
| Minimum Value: -1.7976931348623157e308 | Maximum Value: 1.7976931348623157e308 | Minimum Characters: None | Maximum Characters: None |
| Unit of Measure Type: Units_of_Angle | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: REAL |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | No Values | |