From thomas.gannett at tgannett.net Tue Sep 3 20:26:04 2024 From: thomas.gannett at tgannett.net (=?UTF-8?B?Q0NTRFMgUmFwcG9ydGV1cg==?=) Date: Tue, 3 Sep 2024 15:26:04 -0500 Subject: [Liaisons] =?utf-8?q?CCSDS_Review_of_CCSDS_301=2E0-P-4=2E1=2C_Ti?= =?utf-8?q?me_Code_Formats?= Message-ID: Control Number: XRP 24-21 The following draft CCSDS Recommended Standard has been placed on line and is available for CCSDS-ISO TC 20/SC 13 Liaison review: ?????CCSDS 301.0-P-4.1. Time Code Formats. Pink Sheets. Issue 4.1.? ????????????????????????August 2024. DOCUMENT DESCRIPTION: This Recommendation establishes a common framework and provides a common basis for the formats of time code data. The current issue defines a second P-Field octet for the CCSDS Unsegmented Time Code (CUC) and adds a Security Section. The current draft update incorporates changes identified in the course of periodic reconfirmation review. The due date for receipt of review comments by the Secretariat is 25 October 2024. CCSDS-ISO TC 20/SC 13 Liaisons may submit review comments directly to the CCSDS Secretariat. More information is available at the Web site identified below. The review document, in Portable Document Format (PDF), and associated review materials are available for downloading at the following location: https://public.ccsds.org/review/CCSDS%20301.0-P-4.1/default.aspx From thomas.gannett at tgannett.net Tue Sep 3 20:27:56 2024 From: thomas.gannett at tgannett.net (=?UTF-8?B?Q0NTRFMgUmFwcG9ydGV1cg==?=) Date: Tue, 3 Sep 2024 15:27:56 -0500 Subject: [Liaisons] =?utf-8?q?CCSDS_Review_of_CCSDS_732=2E0-P-4=2E2=2C_AO?= =?utf-8?q?S_Space_Data_Link_Protocol?= Message-ID: Control Number: XRP 24-20 The following draft CCSDS Recommended Standard has been placed on line and is available for CCSDS-ISO TC 20/SC 13 Liaison review: ?????CCSDS 732.0-P-4.2. AOS Space Data Link Protocol. Pink Sheets.? ????????????????????????Issue 4.2. September 2024. DOCUMENT DESCRIPTION: The CCSDS Recommended Standard for AOS Space Data Link Protocol specifies the protocol, services, and procedures pertaining to the CCSDS Version-2 Transfer Frame. The current draft update replaces the Reserved Spare field with a Spacecraft ID Extension field in the Transfer Frame Primary Header, enabling expansion of the 8-bit Spacecraft ID to 10 bits. The due date for receipt of review comments by the Secretariat is 25 October 2024. CCSDS-ISO TC 20/SC 13 Liaisons may submit review comments directly to the CCSDS Secretariat. More information is available at the Web site identified below. The review document, in Portable Document Format (PDF), and associated review materials are available for downloading at the following location: https://public.ccsds.org/review/CCSDS%20732.0-P-4.2/default.aspx