| Description: The start_mars_year element gives the Mars year at the beginning of the observation. Mars Year 1 began on April 11, 1955. The year number is incremented by 1 for each Martian spring equinox (solar longitude 0 degrees). |
| Namespace Id: mars2020 | Steward: geo | Class Name: Observation_Information | Type: ASCII_Integer |
| Minimum Value: -9223372036854775808 | Maximum Value: 9223372036854775807 | Minimum Characters: None | Maximum Characters: None |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: INTEGER |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | No Values | |