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Version History
Overview
Project Title
Robust Compression of Fixed-Length Housekeeping Data
Approval
Approved
Document Number
124.0
Charter
5.03 Data Compression Working Group
Document Type
Blue
Description of Document
The Recommended standard defines a lossless data compressor suitable for low-complexity onboard compression of fixed-length data packets, as might commonly arise in spacecraft housekeeping data. Since housekeeping data is considered to be mission critical, the compressor shall include the option to vary the robustness of the compression system in different packet loss/corruption scenarios.
Applicable Patents
Patent issues have been identified but appropriate ISO forms have not yet been signed. The WG requests a waiver to begin work on this project. (justify in comments). ISO forms must be secured prior to the first formal Agency review.
Patent Comments
There is a patent held by ESA (POCKET+) for which signature of the ISO Form is in progress and CMC will be informed promptly when available. No other patent is known to the WG.
Survey of Similar Standards
Documents or Projects
Undertaken in Other Bodies
and elsewhere in CCSDS
Despite there are several data compression standards, there is none dealing specifically with Fixed-Length Housekeeping Data. Existing standards CCSDS-121.0-B and CCSDS-122.0-B define data compression approaches that are not optimized to deal with the special structure of housekeeping data.
Resources
Book Editor
ESA
Book Editor Resources
3 WM
Prototype 1
ESA
Prototype 1 Resources
6 WM
Prototype 2
CNES
Prototype 2 Resources
6 WM
Prototype 3
Not Required
Prototype 3 Resources
Not Required
Contribute
CNES, ESA
Monitor Only
NASA
Resource Comments
Resources are over a planned calendar period of about two years.
Schedule
Legend for Schedule Milestones
= Required for Orange Books
= Required for Green Books
= Required for Magenta Books
= Required for Blue Books
Note - Red Books are Draft Blue/Magenta Books
Schedule Milestones
Original Completion Date
(Date in M/D/YYYY format.)
Estimated Completion Date
(Date in M/D/YYYY format.)
Actual Completion Date
(Date in M/D/YYYY format.)
Comments
(Date in M/D/YYYY format.)
Project Approved
1/30/2018
1/30/2018
12/18/2017
CMC-P-2017-11-009
Project Start Date
4/9/2018
4/9/2018
4/11/2018
Internal WG Review
First Draft Circulated to WG
4/9/2018
4/9/2018
9/18/2018
First Draft Comments Due
4/15/2018
4/15/2018
10/17/2018
At Fall 2018 Meeting
Second draft circulated to WG
10/1/2018
10/1/2018
4/15/2019
Spring 2019 Meeting
Second Draft Comments Due
11/1/2018
11/1/2018
12/18/2020
Final WB Submitted to AD for Further Processing
12/1/2018
12/1/2018
9/1/2021
External Milestones
Secretariat Document Processing
1/30/2019
11/30/2021
11/30/2021
First Agency Review
3/30/2019
12/30/2021
12/30/2021
RID Resolution
5/30/2019
2/15/2022
3/30/2021
Secretariat Document Processing 2
6/30/2019
4/30/2022
4/30/2022
Final Agency Review
9/30/2019
6/30/2022
6/30/2022
RID Resolution
11/30/2019
8/30/2022
8/30/2022
First Prototype Development
11/30/2019
10/30/2021
3/30/2022
ESA prototype
Second Prototype Development
11/30/2019
10/30/2021
3/30/2022
CNES Prototype
CMC Approval
5/30/2020
9/30/2022
2/28/2023
CMC approval for publication
Total Time to Complete
(in months)
25
53
Attachments
Version: 566.0
Created at 11/20/2017 6:04 PM by Aaron Kiely
Last modified at 3/1/2023 10:42 AM by Brian Oliver