| Description: ring_profile_direction indicates the radial direction of a ring occultation within a particular data product. Possible values are 'Ingress', 'Egress', or 'Multiple'. The value 'Multiple' is used where the occultation track is not monotonic over relatively short time scales. Generally only used for some Hubble-based occultations. May be appropriate for extremely long duration occultations of a high proper motion star (e.g., u36). Required in labels of ring occultation observations. Not intended as a value for a table field. |
| Namespace Id: rings | Steward: rings | Class Name: Occultation_Ring_Profile | 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 |
| | Egress | The ring radius along the occultation track increases with time. |
| | Ingress | The ring radius along the occultation track decreases with time. |
| | Multiple | The occultation track is not monotonic over relatively short time scales. Generally only used for some Hubble-based occultations. May be appropriate for extremely long duration occultations of a high proper motion star (e.g., u36). |