1500 UTC Fri 15858 USB S9 841 000 confirmed above by MDK2
1520 14458 S9+ repeated msg as above
1540 12158 no traffic
MDK2 wrote No traffic so nothing was sent at 1540 on 12158 (monitored on the uTwente web SDR just to be sure).
In the case of a "zero" message, it is transmitted in the first and second time interval, and it is no longer repeated in the third time interval.Despite this rule, I check it.