year_number_reference in Surface_​Mission

Name: year_number_referenceVersion Id:
Description: Identifies the system used to measure year_number. Current values include: Mars Year: Mars year as defined by Piqueaux et al (2015), extending Clancy et al (2000). Mars Year 1 started on April 11, 1955 at Ls (areocentric solar longitude) = 0, with subsequent years starting at Ls=0. Reference:
Namespace Id: msnSteward: imgClass Name: Surface_​MissionType: ASCII_​Short_​String_​Collapsed
Minimum Value: NoneMaximum Value: NoneMinimum Characters: 1Maximum Characters: 255
Unit of Measure Type: NoneDefault Unit Id: NoneAttribute Concept: NoneConceptual Domain: SHORT_STRING
Status: ActiveNillable: falsePattern: None
Permissible Value(s)No Values