Project Title

Abstract Event Definition -- Data Format for Specifying Events



Document Number



3.03 Cross Support Service Management Working Group

Document Type


Description of Document

Defintions of events allowing for statement of events in different time systems (e.g, UTC, TAI, TCB, etc), useful for multiple areas of CCSDS. Includes classification of events, indication of uncertainty offsets, and generic extention mechanisms. Can be further restricted for specific CCSDS data standards, but has the benefit that these defintions trace back to one common definition. Initial work developed as result of coordination between MOIMS NAV, MOIM SMC, and CSS CSSM WGs.

Applicable Patents

There are no patent issues for this technology that are known by the CCSDS community

Patent Comments

Survey of Similar Standards
Documents or Projects
Undertaken in Other Bodies
and elsewhere in CCSDS

There are several time systems/standards used by various applications world-wide, but none addresses a defintition for stating events that can be further dervied/stated for various CCSDS standards while offering useful data definitions/capabilities as indicated in the Decription of Document.


Book Editor


Book Editor Resources

1 Work month

Prototype 1

Not Required

Prototype 1 Resources

Prototype 2

Not Required

Prototype 2 Resources

Prototype 3

Not Required

Prototype 3 Resources



Monitor Only


Resource Comments


Legend for Schedule Milestones
Orange Bullet = Required for Orange Books
Green Bullet = Required for Green Books
Magenta Bullet = Required for Magenta Books
Blue Bullet = Required for Blue Books
Note - Red Books are Draft Blue/Magenta Books

Schedule Milestones
Orange BookGreen BookMagenta BookBlue Book
Original Completion Date
(Date in M/D/YYYY format.)
(Date in M/D/YYYY format.)
Project ApprovedOrange BulletGreen BulletMagenta BulletBlue Bullet6/25/2018As this is a small recommendation the intention is to run this project in parallel with the SM common data entities project
Project Start DateOrange BulletGreen BulletMagenta BulletBlue Bullet6/25/2018
Internal WG Review
First Draft Circulated to WGOrange BulletGreen BulletMagenta BulletBlue Bullet6/25/2018Draft document already exists
First Draft Comments DueOrange BulletGreen BulletMagenta BulletBlue Bullet7/30/2018
Second draft circulated to WGOrange BulletGreen BulletMagenta BulletBlue Bullet8/27/2018
Second Draft Comments DueOrange BulletGreen BulletMagenta BulletBlue Bullet9/24/2018
Final WB Submitted to AD for Further ProcessingOrange BulletGreen BulletMagenta BulletBlue Bullet10/15/2018
External Milestones
Secretariat Document ProcessingOrange BulletGreen BulletMagenta BulletBlue Bullet12/14/2018
First Agency ReviewMagenta BulletBlue Bullet2/25/2019
RID ResolutionMagenta BulletBlue Bullet3/19/2019
Secretariat Document Processing 2Magenta BulletBlue Bullet4/22/2019
Final Agency ReviewMagenta BulletBlue Bullet6/10/2019
RID ResolutionMagenta BulletBlue Bullet6/28/2019
First Prototype DevelopmentBlue Bullet
Second Prototype DevelopmentBlue Bullet
CMC ApprovalOrange BulletGreen BulletMagenta BulletBlue Bullet8/12/2019
Total Time to Complete
(in months)
Version: 283.0
Created at 5/10/2018 3:28 PM by Erik Barkley
Last modified at 3/2/2021 11:15 AM by Laura Stafford