| Description: The name of the proposed aperture used for the observation. For some data files, this is the value of FITS keyword PROPAPER. It is needed because the proposed aperture need not be the same as the aperture actually used. If the FITS keyword PROPAPER is missing or has a blank value, the value of FITS keyword APERTURE is used instead. For FOC data, this attribute should be nil with nilReason = "inapplicable". |
| Namespace Id: hst | Steward: rings | Class Name: Pointing_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: true | Pattern: None |
| Permissible Value(s) | No Values | |