Absolute Reference Time & Leap Second Management - Safran CORTEX Series User Manual

4.5.3.3.4 Absolute Reference Time & Leap Second Management
The following scenario is a combination of the two previous scenarios.
Example:
 The absolute time reference is January 1
 The CORTEX is started on January 1
 The current leap second value is 10.
The procedure is as follows:
1. Enter: Date of Next Offset 1 = 3600
Next Offset 1 = 31 536 010 (one non leap year + 10 seconds)
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2. On January 1 , 1999 at 1 AM, (3600 seconds after boot up) check that the Current Offset is set
to 31 536 010 and that the time-tags are updated accordingly. The day counter is now equal to
366.
3. In the course of 1999, enter:
Date of Next Offset 1 = 0 (January 1
Next Offset 1 = 63 072 010 (two non-leap years + 10 seconds)
Next Offset 2 = Date of Next Offset 2 = 0
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4. On January 1 , 2000 at 0 AM, check that the Current Offset is set to 63 072 010 and that the
time-tags are updated accordingly. The day counter is now equal to 731.
5. Repeat step 3 every following year.
© Safran Data Systems – IMP000074 e14r1
HIGH DATA RATE RECEIVER
HDR-4G+ USER'S MANUAL
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, 1998 at 0 AM.
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1999 at 0 AM with Current Offset = 0.
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Ref. DTU 100782
Is.Rev 3.5
Date: June 1, 2021
2000)
Safran Data Systems
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