Reference number
ISO 11104:2011
© ISO 2025
International Standard
ISO 11104:2011
Space data and information transfer systems — Time code formats
Edition 3
2011-12
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Published (Edition 3, 2011)
This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 11104:2011

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Format
CHF 155
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Abstract

ISO 11104:2011 establishes a small number of standardized recommended time code formats for use in data interchange applications between agencies of the CCSDS. ISO 11104:2011 does not address timing performance issues such as stability, precision, accuracy, etc.

Time codes are digital representations of time information. ISO 11104:2011 describes four standard recommended time codes (one "unsegmented" and three "segmented" codes) which use the international standard second as the fundamental unit of time. An unsegmented time code is a pure binary count of time units and fractional time units from a starting time called the "epoch". A segmented time code is one in which the count of time units and fractional time units is accumulated in two or more cascaded counters which count modulo of various bases and start from the epoch.

General information

  • Status
     : Published
    Publication date
     : 2011-12
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 3
    Number of pages
     : 51
  • Technical Committee :
    ISO/TC 20/SC 13
    ICS :
    49.140 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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