OBJECT = ELEMENT_DEFINITION NAME = "CELESTIAL_COORDINATES_EPOCH" STATUS_TYPE = "PENDING" STATUS_NOTE = "1.0 2005-08-22 ACR Draft definition" DESCRIPTION = " The CELESTIAL_COORDINATES_EPOCH provides the epoch of any right ascension and/or declination given in the same scope that is not otherwise determined by a keyword definition. For example, instead of using the B1950_DECLINATION and B1950_RIGHT_ASCENCION keywords, one could use RIGHT_ASCENSION, DECLINATION, and CELESTIAL_COORDINATES_EPOCH = 'B1950' to indicate the same system. The value of this keyword is a string which states the epoch in the common vernacular, e.g.: B1950, J2000, or a UTC year for coordinates of date. " SOURCE_NAME = "PDS SBN/A.C.Raugh" GENERAL_DATA_TYPE = "CHARACTER" MAXIMUM_LENGTH = 100 MINIMUM_LENGTH = 1 STANDARD_VALUE_SET = "N/A" STANDARD_VALUE_TYPE = "N/A" STANDARD_VALUE_SET_DESC = "N/A" DEFAULT = "N/A" FORMATION_RULE_DESC = "N/A" SYSTEM_CLASSIFICATION_ID = "COMMON" GENERAL_CLASSIFICATION_TYPE = "PARAM" END_OBJECT = ELEMENT_DEFINITION END