Figure 91: Leap Second Management - Safran CORTEX Series User Manual

The procedure is as follows (see next figure):
1. Start the CORTEX and go to the « Time » window.
2. Program the following values:
Current Offset = 10
Date of Next Offset 1 = Date of Next Offset 2 = 15 638 400
Next Offset 1 = 11
st
3. On July 1 , 00 h, 00 mn, 00 s, check that the Current Offset is automatically set to 11 and
that the time-tags are updated accordingly. Note: 15 638 400 = July 1
181 days x 86400.
4. Before December 31
Date of Next Offset 1 = 31 535 989
Next Offset 1 = - 31 535 989
Date of Next Offset 1 = 0
Next Offset 1 = 11
TIME COUNTING
15 638 400 seconds = 1 year)
(if non leap year)
N
0
Current offset = 0
Leap second entry (N seconds)
© Safran Data Systems – IMP000074 e14r1
HIGH DATA RATE RECEIVER
HDR-4G+ USER'S MANUAL
st
, program the following values:
X
At the beginning of next year, force current offset to N seconds
N seconds before end of year, force corrected time to 0 for starting new year (Offset = - X seconds)

Figure 91: Leap Second Management

It cannot be duplicated or distributed without expressed written consent.
Ref. DTU 100782
Is.Rev
Date:
N
Safran Data Systems
This document is the property of
3.5
June 1, 2021
st
, 00 h, 00 mn, 00 s =
TIME
.
Page 241