Hi Evan, coupon payment for Astrea VI should be calculated as (184/365)*(bond face value)*3%. This should work out an approximate yield of 1.51%
Calculation is shown on pg 16 of the distribution report → https://www.azalea.com.sg/storage/app/media/reports/Semi-annual%20Distribution%20Reports/Astrea%20VI/a6-1st-distribution-report.pdf