| marker | description |
| B | BUFR only (BUFR but no TAC in the last 7 days ) green: station in ECMWF/WMO catalogue orange: station not in ECMWF/WMO catalogue |
| T | TAC only TAC but no BUFR in the last 7 days ) |
| D | Dual ( Both BUFR and TAC in the last 7 days ) |
| S | Silent (no report in the last 7 days ) |